340450131 has 8 divisors (see below), whose sum is σ = 518781184. Its totient is φ = 194542920.

The previous prime is 340450127. The next prime is 340450141. The reversal of 340450131 is 131054043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340450131 - 2² = 340450127 is a prime.

It is a super-2 number, since 2×340450131² = 231812583395834322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 16211911 = 340450131 / (3 + 4 + 0 + 4 + 5 + 0 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340450098 and 340450107.

It is not an unprimeable number, because it can be changed into a prime (340450141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8105935 + ... + 8105976.

It is an arithmetic number, because the mean of its divisors is an integer number (64847648).

Almost surely, 2^340450131 is an apocalyptic number.

340450131 is a deficient number, since it is larger than the sum of its proper divisors (178331053).

340450131 is a wasteful number, since it uses less digits than its factorization.

340450131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16211921.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 340450131 is about 18451.2907678569. The cubic root of 340450131 is about 698.2610790349.

It can be divided in two parts, 3404 and 50131, that added together give a palindrome (53535).

The spelling of 340450131 in words is "three hundred forty million, four hundred fifty thousand, one hundred thirty-one".