13403924 has 6 divisors (see below), whose sum is σ = 23456874. Its totient is φ = 6701960.

The previous prime is 13403893. The next prime is 13403969. The reversal of 13403924 is 42930431.

It can be written as a sum of positive squares in only one way, i.e., 7739524 + 5664400 = 2782^2 + 2380^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13403893 and 13403902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675487 + ... + 1675494.

It is an arithmetic number, because the mean of its divisors is an integer number (3909479).

Almost surely, 2^13403924 is an apocalyptic number.

It is an amenable number.

13403924 is a deficient number, since it is larger than the sum of its proper divisors (10052950).

13403924 is a wasteful number, since it uses less digits than its factorization.

13403924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350985 (or 3350983 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13403924 is about 3661.1369818678. The cubic root of 13403924 is about 237.5439564070.

The spelling of 13403924 in words is "thirteen million, four hundred three thousand, nine hundred twenty-four".