1406972256 has 24 divisors (see below), whose sum is σ = 3693302424. Its totient is φ = 468990720.

The previous prime is 1406972239. The next prime is 1406972257. The reversal of 1406972256 is 6522796041.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406972257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7327885 + ... + 7328076.

It is an arithmetic number, because the mean of its divisors is an integer number (153887601).

Almost surely, 2^1406972256 is an apocalyptic number.

1406972256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1406972256 is an abundant number, since it is smaller than the sum of its proper divisors (2286330168).

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

1406972256 is a wasteful number, since it uses less digits than its factorization.

1406972256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14655974 (or 14655966 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1406972256 is about 37509.6288438049. The cubic root of 1406972256 is about 1120.5429595278.

The spelling of 1406972256 in words is "one billion, four hundred six million, nine hundred seventy-two thousand, two hundred fifty-six".