642094080 has 176 divisors, whose sum is σ = 2175387840. Its totient is φ = 161087488.

The previous prime is 642094051. The next prime is 642094081. The reversal of 642094080 is 80490246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642094081) 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, 259891 + ... + 262349.

Almost surely, 2^642094080 is an apocalyptic number.

642094080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 642094080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087693920).

642094080 is an abundant number, since it is smaller than the sum of its proper divisors (1533293760).

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

642094080 is a wasteful number, since it uses less digits than its factorization.

642094080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 642094080 is about 25339.5753713435. The cubic root of 642094080 is about 862.7127607866.

The spelling of 642094080 in words is "six hundred forty-two million, ninety-four thousand, eighty".