13953390 has 32 divisors (see below), whose sum is σ = 36533376. Its totient is φ = 3382560.

The previous prime is 13953383. The next prime is 13953427. The reversal of 13953390 is 9335931.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 20812 + ... + 21471.

It is an arithmetic number, because the mean of its divisors is an integer number (1141668).

Almost surely, 2^13953390 is an apocalyptic number.

13953390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13953390 is an abundant number, since it is smaller than the sum of its proper divisors (22579986).

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

13953390 is a wasteful number, since it uses less digits than its factorization.

13953390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42304.

The product of its (nonzero) digits is 10935, while the sum is 33.

The square root of 13953390 is about 3735.4236707501. The cubic root of 13953390 is about 240.7464606341.

The spelling of 13953390 in words is "thirteen million, nine hundred fifty-three thousand, three hundred ninety".