1456972438 has 16 divisors (see below), whose sum is σ = 2239592976. Its totient is φ = 710600800.

The previous prime is 1456972427. The next prime is 1456972457. The reversal of 1456972438 is 8342796541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1456972391 and 1456972400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21388 + ... + 58063.

It is an arithmetic number, because the mean of its divisors is an integer number (139974561).

Almost surely, 2^1456972438 is an apocalyptic number.

1456972438 is a deficient number, since it is larger than the sum of its proper divisors (782620538).

1456972438 is a wasteful number, since it uses less digits than its factorization.

1456972438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79679.

The product of its digits is 1451520, while the sum is 49.

The square root of 1456972438 is about 38170.3083299048. The cubic root of 1456972438 is about 1133.6624940293.

The spelling of 1456972438 in words is "one billion, four hundred fifty-six million, nine hundred seventy-two thousand, four hundred thirty-eight".