4406405680 has 40 divisors (see below), whose sum is σ = 10247661072. Its totient is φ = 1762086144.

The previous prime is 4406405671. The next prime is 4406405719. The reversal of 4406405680 is 865046044.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×4406405680² = 38832822033472524800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549379 + ... + 557341.

Almost surely, 2^4406405680 is an apocalyptic number.

4406405680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4406405680 is an abundant number, since it is smaller than the sum of its proper divisors (5841255392).

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

4406405680 is a wasteful number, since it uses less digits than its factorization.

4406405680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14893 (or 14887 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 4406405680 is about 66380.7628760020. The cubic root of 4406405680 is about 1639.4373540863.

The spelling of 4406405680 in words is "four billion, four hundred six million, four hundred five thousand, six hundred eighty".