2440251231 has 32 divisors (see below), whose sum is σ = 3588748800. Its totient is φ = 1462665600.

The previous prime is 2440251199. The next prime is 2440251241. The reversal of 2440251231 is 1321520442.

It is not a de Polignac number, because 2440251231 - 2⁵ = 2440251199 is a prime.

It is a super-2 number, since 2×2440251231² = 11909652140794030722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440251241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1187601 + ... + 1189653.

It is an arithmetic number, because the mean of its divisors is an integer number (112148400).

Almost surely, 2^2440251231 is an apocalyptic number.

2440251231 is a deficient number, since it is larger than the sum of its proper divisors (1148497569).

2440251231 is a wasteful number, since it uses less digits than its factorization.

2440251231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2440251231 is about 49398.8990869230. The cubic root of 2440251231 is about 1346.3093031986.

Adding to 2440251231 its reverse (1321520442), we get a palindrome (3761771673).

The spelling of 2440251231 in words is "two billion, four hundred forty million, two hundred fifty-one thousand, two hundred thirty-one".