13642530 has 32 divisors (see below), whose sum is σ = 35719488. Its totient is φ = 3307200.

The previous prime is 13642523. The next prime is 13642537. The reversal of 13642530 is 3524631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13642523) and next prime (13642537).

It is a super-2 number, since 2×13642530² = 372237249601800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13642530.

It is not an unprimeable number, because it can be changed into a prime (13642537) 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, 20341 + ... + 21000.

It is an arithmetic number, because the mean of its divisors is an integer number (1116234).

Almost surely, 2^13642530 is an apocalyptic number.

13642530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13642530 is an abundant number, since it is smaller than the sum of its proper divisors (22076958).

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

13642530 is a wasteful number, since it uses less digits than its factorization.

13642530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41362.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13642530 is about 3693.5795645958. The cubic root of 13642530 is about 238.9451973108.

The spelling of 13642530 in words is "thirteen million, six hundred forty-two thousand, five hundred thirty".