4172772408 has 64 divisors (see below), whose sum is σ = 11938080000. Its totient is φ = 1190633472.

The previous prime is 4172772397. The next prime is 4172772413. The reversal of 4172772408 is 8042772714.

It is a Cunningham number, because it is equal to 64597²-1.

It is a super-2 number, since 2×4172772408² = 34824059137932236928, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4172772408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113043 + ... + 145341.

It is an arithmetic number, because the mean of its divisors is an integer number (186532500).

Almost surely, 2^4172772408 is an apocalyptic number.

It is an amenable number.

4172772408 is an abundant number, since it is smaller than the sum of its proper divisors (7765307592).

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

4172772408 is a wasteful number, since it uses less digits than its factorization.

4172772408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33084 (or 33080 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The square root of 4172772408 is about 64596.9999922597. Note that the first 5 decimals coincide. The cubic root of 4172772408 is about 1609.9345945164.

The spelling of 4172772408 in words is "four billion, one hundred seventy-two million, seven hundred seventy-two thousand, four hundred eight".