340955431 has 4 divisors (see below), whose sum is σ = 341530992. Its totient is φ = 340379872.

The previous prime is 340955423. The next prime is 340955443. The reversal of 340955431 is 134559043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134559043 = 29 ⋅4639967.

It is a cyclic number.

It is not a de Polignac number, because 340955431 - 2³ = 340955423 is a prime.

It is a super-2 number, since 2×340955431² = 232501211856791522, 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 (340955491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286891 + ... + 288076.

It is an arithmetic number, because the mean of its divisors is an integer number (85382748).

Almost surely, 2^340955431 is an apocalyptic number.

340955431 is a deficient number, since it is larger than the sum of its proper divisors (575561).

340955431 is an equidigital number, since it uses as much as digits as its factorization.

340955431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575560.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 340955431 is about 18464.9784998521. The cubic root of 340955431 is about 698.6063639741.

The spelling of 340955431 in words is "three hundred forty million, nine hundred fifty-five thousand, four hundred thirty-one".