4000491600 has 120 divisors (see below), whose sum is σ = 14645640000. Its totient is φ = 914396160.

The previous prime is 4000491589. The next prime is 4000491659. The reversal of 4000491600 is 61940004.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229725 + ... + 246524.

It is an arithmetic number, because the mean of its divisors is an integer number (122047000).

Almost surely, 2^4000491600 is an apocalyptic number.

4000491600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000491600 is an abundant number, since it is smaller than the sum of its proper divisors (10645148400).

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

4000491600 is a wasteful number, since it uses less digits than its factorization.

4000491600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476277 (or 476266 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 4000491600 is about 63249.4395232084. The cubic root of 4000491600 is about 1587.4660798341.

The spelling of 4000491600 in words is "four billion, four hundred ninety-one thousand, six hundred".