13975420 has 24 divisors (see below), whose sum is σ = 30296448. Its totient is φ = 5409600.

The previous prime is 13975417. The next prime is 13975433. The reversal of 13975420 is 2457931.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10651 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (1262352).

Almost surely, 2^13975420 is an apocalyptic number.

13975420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13975420 is an abundant number, since it is smaller than the sum of its proper divisors (16321028).

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

13975420 is a wasteful number, since it uses less digits than its factorization.

13975420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22581 (or 22579 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13975420 is about 3738.3713031212. The cubic root of 13975420 is about 240.8730930819.

The spelling of 13975420 in words is "thirteen million, nine hundred seventy-five thousand, four hundred twenty".