1630445264 has 40 divisors (see below), whose sum is σ = 3619649280. Its totient is φ = 696947328.

The previous prime is 1630445263. The next prime is 1630445269. The reversal of 1630445264 is 4625440361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630445261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24857 + ... + 62279.

It is an arithmetic number, because the mean of its divisors is an integer number (90491232).

Almost surely, 2^1630445264 is an apocalyptic number.

1630445264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1630445264 is an abundant number, since it is smaller than the sum of its proper divisors (1989204016).

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

1630445264 is a wasteful number, since it uses less digits than its factorization.

1630445264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37827 (or 37821 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 1630445264 is about 40378.7724429557. The cubic root of 1630445264 is about 1176.9790734316.

The spelling of 1630445264 in words is "one billion, six hundred thirty million, four hundred forty-five thousand, two hundred sixty-four".