1372726426 has 8 divisors (see below), whose sum is σ = 2130092820. Its totient is φ = 662695488.

The previous prime is 1372726417. The next prime is 1372726441. The reversal of 1372726426 is 6246272731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1343295801 + 29430625 = 36651^2 + 5425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11833791 + ... + 11833906.

Almost surely, 2^1372726426 is an apocalyptic number.

1372726426 is a deficient number, since it is larger than the sum of its proper divisors (757366394).

1372726426 is a wasteful number, since it uses less digits than its factorization.

1372726426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23667728.

The product of its digits is 169344, while the sum is 40.

The square root of 1372726426 is about 37050.3228865822. The cubic root of 1372726426 is about 1111.3768122183.

The spelling of 1372726426 in words is "one billion, three hundred seventy-two million, seven hundred twenty-six thousand, four hundred twenty-six".