340241431 has 2 divisors, whose sum is σ = 340241432. Its totient is φ = 340241430.

The previous prime is 340241389. The next prime is 340241449. The reversal of 340241431 is 134142043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340241431 - 2¹³ = 340233239 is a prime.

It is a super-2 number, since 2×340241431² = 231528462737855522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340241471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170120715 + 170120716.

It is an arithmetic number, because the mean of its divisors is an integer number (170120716).

Almost surely, 2^340241431 is an apocalyptic number.

340241431 is a deficient number, since it is larger than the sum of its proper divisors (1).

340241431 is an equidigital number, since it uses as much as digits as its factorization.

340241431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 340241431 is about 18445.6344699769. The cubic root of 340241431 is about 698.1183690739.

Adding to 340241431 its reverse (134142043), we get a palindrome (474383474).

The spelling of 340241431 in words is "three hundred forty million, two hundred forty-one thousand, four hundred thirty-one".