354401431 has 16 divisors (see below), whose sum is σ = 392243040. Its totient is φ = 318689280.

The previous prime is 354401419. The next prime is 354401477. The reversal of 354401431 is 134104453.

It is a cyclic number.

It is not a de Polignac number, because 354401431 - 2⁷ = 354401303 is a prime.

It is a super-2 number, since 2×354401431² = 251200748589695522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 354401396 and 354401405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354401231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44116 + ... + 51526.

It is an arithmetic number, because the mean of its divisors is an integer number (24515190).

Almost surely, 2^354401431 is an apocalyptic number.

354401431 is a deficient number, since it is larger than the sum of its proper divisors (37841609).

354401431 is a wasteful number, since it uses less digits than its factorization.

354401431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 354401431 is about 18825.5526080910. The cubic root of 354401431 is about 707.6716900309.

Adding to 354401431 its reverse (134104453), we get a palindrome (488505884).

The spelling of 354401431 in words is "three hundred fifty-four million, four hundred one thousand, four hundred thirty-one".