2997428 has 36 divisors (see below), whose sum is σ = 6267492. Its totient is φ = 1249920.

The previous prime is 2997419. The next prime is 2997439. The reversal of 2997428 is 8247992.

2997428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 753424 + 2244004 = 868^2 + 1498^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

Its product of digits (72576) is a multiple of the sum of its prime factors (432).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7850 + ... + 8222.

It is an arithmetic number, because the mean of its divisors is an integer number (174097).

2^2997428 is an apocalyptic number.

2997428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2997428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3133746).

2997428 is an abundant number, since it is smaller than the sum of its proper divisors (3270064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2997428 is a wasteful number, since it uses less digits than its factorization.

2997428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 423 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 2997428 is about 1731.3081759179. The cubic root of 2997428 is about 144.1837289587.

The spelling of 2997428 in words is "two million, nine hundred ninety-seven thousand, four hundred twenty-eight".