7901490 has 16 divisors (see below), whose sum is σ = 18963648. Its totient is φ = 2107056.

The previous prime is 7901483. The next prime is 7901507. The reversal of 7901490 is 941097.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 263383 = 7901490 / (7 + 9 + 0 + 1 + 4 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131662 + ... + 131721.

It is an arithmetic number, because the mean of its divisors is an integer number (1185228).

Almost surely, 2^7901490 is an apocalyptic number.

7901490 is an abundant number, since it is smaller than the sum of its proper divisors (11062158).

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

7901490 is a wasteful number, since it uses less digits than its factorization.

7901490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263393.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 7901490 is about 2810.9589111191. The cubic root of 7901490 is about 199.1756905707.

The spelling of 7901490 in words is "seven million, nine hundred one thousand, four hundred ninety".