2491902 has 24 divisors (see below), whose sum is σ = 6170736. Its totient is φ = 711936.

The previous prime is 2491891. The next prime is 2491903. The reversal of 2491902 is 2091942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9763 + ... + 10014.

It is an arithmetic number, because the mean of its divisors is an integer number (257114).

2^2491902 is an apocalyptic number.

2491902 is an abundant number, since it is smaller than the sum of its proper divisors (3678834).

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

2491902 is a wasteful number, since it uses less digits than its factorization.

2491902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19792 (or 19789 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2491902 is about 1578.5759405236. The cubic root of 2491902 is about 135.5741799587.

The spelling of 2491902 in words is "two million, four hundred ninety-one thousand, nine hundred two".