13530790 has 32 divisors (see below), whose sum is σ = 29977920. Its totient is φ = 4281984.

The previous prime is 13530763. The next prime is 13530809. The reversal of 13530790 is 9703531.

13530790 = 813² + 814² + ... + 832².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6525 + ... + 8344.

It is an arithmetic number, because the mean of its divisors is an integer number (936810).

Almost surely, 2^13530790 is an apocalyptic number.

13530790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13530790 is an abundant number, since it is smaller than the sum of its proper divisors (16447130).

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

13530790 is a wasteful number, since it uses less digits than its factorization.

13530790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14896.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 13530790 is about 3678.4222161139. The cubic root of 13530790 is about 238.2910428601.

The spelling of 13530790 in words is "thirteen million, five hundred thirty thousand, seven hundred ninety".