902465840 has 40 divisors (see below), whose sum is σ = 2113354320. Its totient is φ = 358384896.

The previous prime is 902465833. The next prime is 902465869. The reversal of 902465840 is 48564209.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 902465794 and 902465803.

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 7 ways as a sum of consecutive naturals, for example, 29459 + ... + 51698.

It is an arithmetic number, because the mean of its divisors is an integer number (52833858).

Almost surely, 2^902465840 is an apocalyptic number.

It is an amenable number.

902465840 is an abundant number, since it is smaller than the sum of its proper divisors (1210888480).

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

902465840 is a wasteful number, since it uses less digits than its factorization.

902465840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81309 (or 81303 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 902465840 is about 30041.0692219834. The cubic root of 902465840 is about 966.3703369676.

The spelling of 902465840 in words is "nine hundred two million, four hundred sixty-five thousand, eight hundred forty".