15040490 has 16 divisors (see below), whose sum is σ = 27216648. Its totient is φ = 5984256.

The previous prime is 15040489. The next prime is 15040523. The reversal of 15040490 is 9404051.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13845841 + 1194649 = 3721^2 + 1093^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1967 + ... + 5826.

Almost surely, 2^15040490 is an apocalyptic number.

15040490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15040490 is a deficient number, since it is larger than the sum of its proper divisors (12176158).

15040490 is a wasteful number, since it uses less digits than its factorization.

15040490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7993.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 15040490 is about 3878.2070599699. The cubic root of 15040490 is about 246.8429123494.

The spelling of 15040490 in words is "fifteen million, forty thousand, four hundred ninety".