1407172986 has 80 divisors (see below), whose sum is σ = 3212332200. Its totient is φ = 460339200.

The previous prime is 1407172961. The next prime is 1407172993. The reversal of 1407172986 is 6892717041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1142102025 + 265070961 = 33795^2 + 16281^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2341086 + ... + 2341686.

Almost surely, 2^1407172986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1407172986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606166100).

1407172986 is an abundant number, since it is smaller than the sum of its proper divisors (1805159214).

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

1407172986 is a wasteful number, since it uses less digits than its factorization.

1407172986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1407172986 is about 37512.3044613364. The cubic root of 1407172986 is about 1120.5962455566.

The spelling of 1407172986 in words is "one billion, four hundred seven million, one hundred seventy-two thousand, nine hundred eighty-six".