8155490 has 16 divisors (see below), whose sum is σ = 16777152. Its totient is φ = 2796144.

The previous prime is 8155471. The next prime is 8155493. The reversal of 8155490 is 945518.

It is not an unprimeable number, because it can be changed into a prime (8155493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58184 + ... + 58323.

It is an arithmetic number, because the mean of its divisors is an integer number (1048572).

Almost surely, 2^8155490 is an apocalyptic number.

8155490 is an abundant number, since it is smaller than the sum of its proper divisors (8621662).

8155490 is a wasteful number, since it uses less digits than its factorization.

8155490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116521.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 8155490 is about 2855.7818544140. The cubic root of 8155490 is about 201.2874446484.

The spelling of 8155490 in words is "eight million, one hundred fifty-five thousand, four hundred ninety".