1630472313 has 16 divisors (see below), whose sum is σ = 2202494976. Its totient is φ = 1072792080.

The previous prime is 1630472293. The next prime is 1630472317. The reversal of 1630472313 is 3132740361.

It is not a de Polignac number, because 1630472313 - 2¹⁰ = 1630471289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1630472317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77620 + ... + 96362.

It is an arithmetic number, because the mean of its divisors is an integer number (137655936).

Almost surely, 2^1630472313 is an apocalyptic number.

It is an amenable number.

1630472313 is a deficient number, since it is larger than the sum of its proper divisors (572022663).

1630472313 is a wasteful number, since it uses less digits than its factorization.

1630472313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19124.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 1630472313 is about 40379.1073824076. The cubic root of 1630472313 is about 1176.9855820690.

The spelling of 1630472313 in words is "one billion, six hundred thirty million, four hundred seventy-two thousand, three hundred thirteen".