2405491872 has 96 divisors (see below), whose sum is σ = 7449329664. Its totient is φ = 665107200.

The previous prime is 2405491861. The next prime is 2405491877. The reversal of 2405491872 is 2781945042.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2405491872² = 11572782292516128768, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2405491877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36904 + ... + 78567.

It is an arithmetic number, because the mean of its divisors is an integer number (77597184).

Almost surely, 2^2405491872 is an apocalyptic number.

It is an amenable number.

2405491872 is an abundant number, since it is smaller than the sum of its proper divisors (5043837792).

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

2405491872 is a wasteful number, since it uses less digits than its factorization.

2405491872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115522 (or 115514 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2405491872 is about 49045.8140109836. The cubic root of 2405491872 is about 1339.8863555511.

The spelling of 2405491872 in words is "two billion, four hundred five million, four hundred ninety-one thousand, eight hundred seventy-two".