2404138981 has 8 divisors (see below), whose sum is σ = 2436694400. Its totient is φ = 2371636800.

The previous prime is 2404138967. The next prime is 2404138991. The reversal of 2404138981 is 1898314042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2404138981 - 2⁵ = 2404138949 is a prime.

It is a super-2 number, since 2×2404138981² = 11559768479927436722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404138991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82210 + ... + 107548.

It is an arithmetic number, because the mean of its divisors is an integer number (304586800).

Almost surely, 2^2404138981 is an apocalyptic number.

It is an amenable number.

2404138981 is a deficient number, since it is larger than the sum of its proper divisors (32555419).

2404138981 is a wasteful number, since it uses less digits than its factorization.

2404138981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26619.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2404138981 is about 49032.0199563510. The cubic root of 2404138981 is about 1339.6351165490.

The spelling of 2404138981 in words is "two billion, four hundred four million, one hundred thirty-eight thousand, nine hundred eighty-one".