354450431 has 2 divisors, whose sum is σ = 354450432. Its totient is φ = 354450430.

The previous prime is 354450427. The next prime is 354450433. The reversal of 354450431 is 134054453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 354450431 - 2² = 354450427 is a prime.

It is a super-2 number, since 2×354450431² = 251270216072171522, which contains 22 as substring.

Together with 354450433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 354450394 and 354450403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354450433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177225215 + 177225216.

It is an arithmetic number, because the mean of its divisors is an integer number (177225216).

Almost surely, 2^354450431 is an apocalyptic number.

354450431 is a deficient number, since it is larger than the sum of its proper divisors (1).

354450431 is an equidigital number, since it uses as much as digits as its factorization.

354450431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 354450431 is about 18826.8539857301. The cubic root of 354450431 is about 707.7043030621.

The spelling of 354450431 in words is "three hundred fifty-four million, four hundred fifty thousand, four hundred thirty-one".