13242490 has 32 divisors (see below), whose sum is σ = 25672464. Its totient is φ = 4899840.

The previous prime is 13242443. The next prime is 13242497. The reversal of 13242490 is 9424231.

It can be written as a sum of positive squares in 8 ways, for example, as 4721929 + 8520561 = 2173^2 + 2919^2 .

It is not an unprimeable number, because it can be changed into a prime (13242497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9732 + ... + 11008.

Almost surely, 2^13242490 is an apocalyptic number.

13242490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13242490 is a deficient number, since it is larger than the sum of its proper divisors (12429974).

13242490 is a wasteful number, since it uses less digits than its factorization.

13242490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 13242490 is about 3639.0232205909. The cubic root of 13242490 is about 236.5864591877.

The spelling of 13242490 in words is "thirteen million, two hundred forty-two thousand, four hundred ninety".