1634361564 has 48 divisors (see below), whose sum is σ = 4200618240. Its totient is φ = 490448640.

The previous prime is 1634361539. The next prime is 1634361569. The reversal of 1634361564 is 4651634361.

It is a super-2 number, since 2×1634361564² = 5342275443761052192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634361569) 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, 46509 + ... + 73700.

It is an arithmetic number, because the mean of its divisors is an integer number (87512880).

Almost surely, 2^1634361564 is an apocalyptic number.

It is an amenable number.

1634361564 is an abundant number, since it is smaller than the sum of its proper divisors (2566256676).

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

1634361564 is a wasteful number, since it uses less digits than its factorization.

1634361564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120330 (or 120328 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 1634361564 is about 40427.2378972395. The cubic root of 1634361564 is about 1177.9206807328.

The spelling of 1634361564 in words is "one billion, six hundred thirty-four million, three hundred sixty-one thousand, five hundred sixty-four".