1630676431 has 6 divisors (see below), whose sum is σ = 1732241360. Its totient is φ = 1534754016.

The previous prime is 1630676419. The next prime is 1630676447. The reversal of 1630676431 is 1346760361.

It is a happy number.

It is not a de Polignac number, because 1630676431 - 2¹³ = 1630668239 is a prime.

It is a super-2 number, since 2×1630676431² = 5318211245237795522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630676731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2820951 + ... + 2821528.

Almost surely, 2^1630676431 is an apocalyptic number.

1630676431 is a deficient number, since it is larger than the sum of its proper divisors (101564929).

1630676431 is an equidigital number, since it uses as much as digits as its factorization.

1630676431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5642513 (or 5642496 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 1630676431 is about 40381.6348232708. The cubic root of 1630676431 is about 1177.0346954284.

The spelling of 1630676431 in words is "one billion, six hundred thirty million, six hundred seventy-six thousand, four hundred thirty-one".