2042400431 has 2 divisors, whose sum is σ = 2042400432. Its totient is φ = 2042400430.

The previous prime is 2042400401. The next prime is 2042400457. The reversal of 2042400431 is 1340042402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2042400431 - 2²⁶ = 1975291567 is a prime.

It is a super-2 number, since 2×2042400431² = 8342799041097971522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042400401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021200215 + 1021200216.

It is an arithmetic number, because the mean of its divisors is an integer number (1021200216).

Almost surely, 2^2042400431 is an apocalyptic number.

2042400431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042400431 is an equidigital number, since it uses as much as digits as its factorization.

2042400431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2042400431 is about 45192.9245679011. The cubic root of 2042400431 is about 1268.7623942879.

Adding to 2042400431 its reverse (1340042402), we get a palindrome (3382442833).

The spelling of 2042400431 in words is "two billion, forty-two million, four hundred thousand, four hundred thirty-one".