2927440 has 80 divisors (see below), whose sum is σ = 7463808. Its totient is φ = 1064448.

The previous prime is 2927389. The next prime is 2927459. The reversal of 2927440 is 447292.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2927399 and 2927408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68059 + ... + 68101.

2^2927440 is an apocalyptic number.

2927440 is a gapful number since it is divisible by the number (20) 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 2927440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3731904).

2927440 is an abundant number, since it is smaller than the sum of its proper divisors (4536368).

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

2927440 is a wasteful number, since it uses less digits than its factorization.

2927440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2927440 is about 1710.9763294681. The cubic root of 2927440 is about 143.0526808037.

The spelling of 2927440 in words is "two million, nine hundred twenty-seven thousand, four hundred forty".