7902940 has 12 divisors (see below), whose sum is σ = 16596216. Its totient is φ = 3161168.

The previous prime is 7902931. The next prime is 7902949. The reversal of 7902940 is 492097.

It is an interprime number because it is at equal distance from previous prime (7902931) and next prime (7902949).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7902949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 197554 + ... + 197593.

It is an arithmetic number, because the mean of its divisors is an integer number (1383018).

Almost surely, 2^7902940 is an apocalyptic number.

It is an amenable number.

7902940 is an abundant number, since it is smaller than the sum of its proper divisors (8693276).

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

7902940 is a wasteful number, since it uses less digits than its factorization.

7902940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395156 (or 395154 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 7902940 is about 2811.2168183902. The cubic root of 7902940 is about 199.1878733821.

The spelling of 7902940 in words is "seven million, nine hundred two thousand, nine hundred forty".