1642625080 has 32 divisors (see below), whose sum is σ = 3756500640. Its totient is φ = 646277760.

The previous prime is 1642625053. The next prime is 1642625081. The reversal of 1642625080 is 805262461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642625081) 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, 334164 + ... + 339043.

It is an arithmetic number, because the mean of its divisors is an integer number (117390645).

Almost surely, 2^1642625080 is an apocalyptic number.

1642625080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1642625080 is an abundant number, since it is smaller than the sum of its proper divisors (2113875560).

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

1642625080 is a wasteful number, since it uses less digits than its factorization.

1642625080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673279 (or 673275 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1642625080 is about 40529.3113684405. The cubic root of 1642625080 is about 1179.9025774208.

The spelling of 1642625080 in words is "one billion, six hundred forty-two million, six hundred twenty-five thousand, eighty".