6642088404 has 48 divisors (see below), whose sum is σ = 17718895488. Its totient is φ = 1897026048.

The previous prime is 6642088403. The next prime is 6642088429. The reversal of 6642088404 is 4048802466.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642088403) 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, 234664 + ... + 261440.

It is an arithmetic number, because the mean of its divisors is an integer number (369143656).

Almost surely, 2^6642088404 is an apocalyptic number.

It is an amenable number.

6642088404 is an abundant number, since it is smaller than the sum of its proper divisors (11076807084).

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

6642088404 is a wasteful number, since it uses less digits than its factorization.

6642088404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29744 (or 29742 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The square root of 6642088404 is about 81499.0086074671. The cubic root of 6642088404 is about 1879.7563064994.

The spelling of 6642088404 in words is "six billion, six hundred forty-two million, eighty-eight thousand, four hundred four".