1630576745 has 16 divisors (see below), whose sum is σ = 2257123968. Its totient is φ = 1107657600.

The previous prime is 1630576711. The next prime is 1630576757. The reversal of 1630576745 is 5476750361.

It is not a de Polignac number, because 1630576745 - 2²⁰ = 1629528169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1630576696 and 1630576705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213956 + ... + 221445.

It is an arithmetic number, because the mean of its divisors is an integer number (141070248).

Almost surely, 2^1630576745 is an apocalyptic number.

It is an amenable number.

1630576745 is a deficient number, since it is larger than the sum of its proper divisors (626547223).

1630576745 is a wasteful number, since it uses less digits than its factorization.

1630576745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435520.

The product of its (nonzero) digits is 529200, while the sum is 44.

The square root of 1630576745 is about 40380.4005056909. The cubic root of 1630576745 is about 1177.0107102344.

The spelling of 1630576745 in words is "one billion, six hundred thirty million, five hundred seventy-six thousand, seven hundred forty-five".