340433431 has 24 divisors (see below), whose sum is σ = 392395920. Its totient is φ = 294368256.

The previous prime is 340433417. The next prime is 340433453. The reversal of 340433431 is 134334043.

It is not a de Polignac number, because 340433431 - 2⁹ = 340432919 is a prime.

It is a super-2 number, since 2×340433431² = 231789841884863522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340433396 and 340433405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340433531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310921 + ... + 312013.

It is an arithmetic number, because the mean of its divisors is an integer number (16349830).

Almost surely, 2^340433431 is an apocalyptic number.

340433431 is a deficient number, since it is larger than the sum of its proper divisors (51962489).

340433431 is a wasteful number, since it uses less digits than its factorization.

340433431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 340433431 is about 18450.8382194414. The cubic root of 340433431 is about 698.2496616499.

Adding to 340433431 its reverse (134334043), we get a palindrome (474767474).

The spelling of 340433431 in words is "three hundred forty million, four hundred thirty-three thousand, four hundred thirty-one".