13970428 has 6 divisors (see below), whose sum is σ = 24448256. Its totient is φ = 6985212.

The previous prime is 13970401. The next prime is 13970459. The reversal of 13970428 is 82407931.

It is a junction number, because it is equal to n+sod(n) for n = 13970393 and 13970402.

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, 1746300 + ... + 1746307.

Almost surely, 2^13970428 is an apocalyptic number.

It is an amenable number.

13970428 is a deficient number, since it is larger than the sum of its proper divisors (10477828).

13970428 is a wasteful number, since it uses less digits than its factorization.

13970428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492611 (or 3492609 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 13970428 is about 3737.7035730512. The cubic root of 13970428 is about 240.8444098252.

The spelling of 13970428 in words is "thirteen million, nine hundred seventy thousand, four hundred twenty-eight".