2400431 has 8 divisors (see below), whose sum is σ = 2674944. Its totient is φ = 2135320.

The previous prime is 2400413. The next prime is 2400469. The reversal of 2400431 is 1340042.

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

It is not a de Polignac number, because 2400431 - 2⁶ = 2400367 is a prime.

It is a super-2 number, since 2×2400431² = 11524137971522, 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 (2400481) 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, 1805 + ... + 2838.

It is an arithmetic number, because the mean of its divisors is an integer number (334368).

2^2400431 is an apocalyptic number.

2400431 is a deficient number, since it is larger than the sum of its proper divisors (274513).

2400431 is a wasteful number, since it uses less digits than its factorization.

2400431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2400431 is about 1549.3324368902. The cubic root of 2400431 is about 133.8946041368.

Adding to 2400431 its reverse (1340042), we get a palindrome (3740473).

The spelling of 2400431 in words is "two million, four hundred thousand, four hundred thirty-one".