13023490 has 8 divisors (see below), whose sum is σ = 23442300. Its totient is φ = 5209392.

The previous prime is 13023487. The next prime is 13023499. The reversal of 13023490 is 9432031.

It can be written as a sum of positive squares in 2 ways, for example, as 11744329 + 1279161 = 3427^2 + 1131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13023490² = 339222583560200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13023499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651165 + ... + 651184.

Almost surely, 2^13023490 is an apocalyptic number.

13023490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13023490 is a deficient number, since it is larger than the sum of its proper divisors (10418810).

13023490 is a wasteful number, since it uses less digits than its factorization.

13023490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302356.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13023490 is about 3608.8072821917. The cubic root of 13023490 is about 235.2750062541.

The spelling of 13023490 in words is "thirteen million, twenty-three thousand, four hundred ninety".