1642752648 has 48 divisors (see below), whose sum is σ = 4543793280. Its totient is φ = 535932384.

The previous prime is 1642752637. The next prime is 1642752659. The reversal of 1642752648 is 8462572461.

1642752648 is a `hidden beast` number, since 1 + 64 + 27 + 526 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (1642752637) and next prime (1642752659).

It is a super-2 number, since 2×1642752648² = 5397272525022023808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239340 + ... + 246107.

It is an arithmetic number, because the mean of its divisors is an integer number (94662360).

Almost surely, 2^1642752648 is an apocalyptic number.

1642752648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1642752648 is an abundant number, since it is smaller than the sum of its proper divisors (2901040632).

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

1642752648 is a wasteful number, since it uses less digits than its factorization.

1642752648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485506 (or 485499 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 1642752648 is about 40530.8851124670. The cubic root of 1642752648 is about 1179.9331207906.

The spelling of 1642752648 in words is "one billion, six hundred forty-two million, seven hundred fifty-two thousand, six hundred forty-eight".