13029240 has 64 divisors (see below), whose sum is σ = 44674560. Its totient is φ = 2977920.

The previous prime is 13029227. The next prime is 13029241. The reversal of 13029240 is 4292031.

It is a super-2 number, since 2×13029240² = 339522189955200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13029241) 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, 6916 + ... + 8595.

It is an arithmetic number, because the mean of its divisors is an integer number (698040).

Almost surely, 2^13029240 is an apocalyptic number.

13029240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13029240 is an abundant number, since it is smaller than the sum of its proper divisors (31645320).

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

13029240 is a wasteful number, since it uses less digits than its factorization.

13029240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15532 (or 15528 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13029240 is about 3609.6038563809. The cubic root of 13029240 is about 235.3096265758.

The spelling of 13029240 in words is "thirteen million, twenty-nine thousand, two hundred forty".