1421737956 has 36 divisors (see below), whose sum is σ = 3606837052. Its totient is φ = 472198464.

The previous prime is 1421737907. The next prime is 1421737969. The reversal of 1421737956 is 6597371241.

1421737956 is a `hidden beast` number, since 14 + 217 + 379 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 337089600 + 1084648356 = 18360^2 + 32934^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1421737956³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61315 + ... + 81258.

Almost surely, 2^1421737956 is an apocalyptic number.

It is an amenable number.

1421737956 is an abundant number, since it is smaller than the sum of its proper divisors (2185099096).

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

1421737956 is a wasteful number, since it uses less digits than its factorization.

1421737956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142860 (or 142855 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 1421737956 is about 37705.9405929623. The cubic root of 1421737956 is about 1124.4492332197.

The spelling of 1421737956 in words is "one billion, four hundred twenty-one million, seven hundred thirty-seven thousand, nine hundred fifty-six".