2906442 has 80 divisors (see below), whose sum is σ = 8154432. Its totient is φ = 751680.

The previous prime is 2906429. The next prime is 2906443. The reversal of 2906442 is 2446092.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2906443) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12358 + ... + 12590.

2^2906442 is an apocalyptic number.

2906442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2906442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4077216).

2906442 is an abundant number, since it is smaller than the sum of its proper divisors (5247990).

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

2906442 is a wasteful number, since it uses less digits than its factorization.

2906442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2906442 is about 1704.8290236854. The cubic root of 2906442 is about 142.7098293815.

The spelling of 2906442 in words is "two million, nine hundred six thousand, four hundred forty-two".