2400251081 has 8 divisors (see below), whose sum is σ = 2437125984. Its totient is φ = 2363407200.

The previous prime is 2400251053. The next prime is 2400251093. The reversal of 2400251081 is 1801520042.

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 2400251081 - 2¹⁰ = 2400250057 is a prime.

It is a super-2 number, since 2×2400251081² = 11522410503683337122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2400251041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184181 + ... + 196781.

It is an arithmetic number, because the mean of its divisors is an integer number (304640748).

Almost surely, 2^2400251081 is an apocalyptic number.

It is an amenable number.

2400251081 is a deficient number, since it is larger than the sum of its proper divisors (36874903).

2400251081 is a wasteful number, since it uses less digits than its factorization.

2400251081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15511.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 2400251081 is about 48992.3573733700. The cubic root of 2400251081 is about 1338.9125879514.

The spelling of 2400251081 in words is "two billion, four hundred million, two hundred fifty-one thousand, eighty-one".