64013426 has 4 divisors (see below), whose sum is σ = 96020142. Its totient is φ = 32006712.

The previous prime is 64013371. The next prime is 64013431. The reversal of 64013426 is 62431046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62431046 = 2 ⋅31215523.

It can be written as a sum of positive squares in only one way, i.e., 62805625 + 1207801 = 7925^2 + 1099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64013395 and 64013404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16003355 + ... + 16003358.

Almost surely, 2^64013426 is an apocalyptic number.

64013426 is a deficient number, since it is larger than the sum of its proper divisors (32006716).

64013426 is a wasteful number, since it uses less digits than its factorization.

64013426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32006715.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 64013426 is about 8000.8390809964. The cubic root of 64013426 is about 400.0279688776.

The spelling of 64013426 in words is "sixty-four million, thirteen thousand, four hundred twenty-six".