1047406256 has 40 divisors (see below), whose sum is σ = 2191568064. Its totient is φ = 482065920.

The previous prime is 1047406231. The next prime is 1047406289. The reversal of 1047406256 is 6526047401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69476 + ... + 83196.

Almost surely, 2^1047406256 is an apocalyptic number.

1047406256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1047406256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095784032).

1047406256 is an abundant number, since it is smaller than the sum of its proper divisors (1144161808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1047406256 is a wasteful number, since it uses less digits than its factorization.

1047406256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14109 (or 14103 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 1047406256 is about 32363.6564065311. The cubic root of 1047406256 is about 1015.5587550146.

The spelling of 1047406256 in words is "one billion, forty-seven million, four hundred six thousand, two hundred fifty-six".