2031256426 has 4 divisors (see below), whose sum is σ = 3046884642. Its totient is φ = 1015628212.

The previous prime is 2031256417. The next prime is 2031256499. The reversal of 2031256426 is 6246521302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1953728401 + 77528025 = 44201^2 + 8805^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507814105 + ... + 507814108.

Almost surely, 2^2031256426 is an apocalyptic number.

2031256426 is a deficient number, since it is larger than the sum of its proper divisors (1015628216).

2031256426 is a wasteful number, since it uses less digits than its factorization.

2031256426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015628215.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2031256426 is about 45069.4622333127. The cubic root of 2031256426 is about 1266.4505902738.

Adding to 2031256426 its reverse (6246521302), we get a palindrome (8277777728).

The spelling of 2031256426 in words is "two billion, thirty-one million, two hundred fifty-six thousand, four hundred twenty-six".