1631314242 has 40 divisors (see below), whose sum is σ = 3724340796. Its totient is φ = 533508768.

The previous prime is 1631314219. The next prime is 1631314253. The reversal of 1631314242 is 2424131361.

It is a happy number.

1631314242 is a `hidden beast` number, since 1 + 631 + 3 + 1 + 4 + 24 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1583164521 + 48149721 = 39789^2 + 6939^2 .

It is a super-2 number, since 2×1631314242² = 5322372312304069128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 86413 + ... + 103584.

Almost surely, 2^1631314242 is an apocalyptic number.

1631314242 is an abundant number, since it is smaller than the sum of its proper divisors (2093026554).

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

1631314242 is a wasteful number, since it uses less digits than its factorization.

1631314242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190064 (or 190055 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1631314242 is about 40389.5313416732. The cubic root of 1631314242 is about 1177.1881343746.

The spelling of 1631314242 in words is "one billion, six hundred thirty-one million, three hundred fourteen thousand, two hundred forty-two".