1406616156 has 72 divisors (see below), whose sum is σ = 3883152000. Its totient is φ = 425774880.

The previous prime is 1406616149. The next prime is 1406616179. The reversal of 1406616156 is 6516166041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1406616156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552735 + ... + 555273.

Almost surely, 2^1406616156 is an apocalyptic number.

It is an amenable number.

1406616156 is an abundant number, since it is smaller than the sum of its proper divisors (2476535844).

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

1406616156 is a wasteful number, since it uses less digits than its factorization.

1406616156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959 (or 3954 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1406616156 is about 37504.8817622453. The cubic root of 1406616156 is about 1120.4484163187.

The spelling of 1406616156 in words is "one billion, four hundred six million, six hundred sixteen thousand, one hundred fifty-six".