340921031 has 8 divisors (see below), whose sum is σ = 372102528. Its totient is φ = 309771000.

The previous prime is 340921003. The next prime is 340921051. The reversal of 340921031 is 130129043.

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

It is a de Polignac number, because none of the positive numbers 2^k-340921031 is a prime.

It is a super-2 number, since 2×340921031² = 232454298756205922, 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 = 340920988 and 340921006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340921051) 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, 18716 + ... + 32126.

It is an arithmetic number, because the mean of its divisors is an integer number (46512816).

Almost surely, 2^340921031 is an apocalyptic number.

340921031 is a deficient number, since it is larger than the sum of its proper divisors (31181497).

340921031 is a wasteful number, since it uses less digits than its factorization.

340921031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15733.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 340921031 is about 18464.0469832591. The cubic root of 340921031 is about 698.5828683644.

The spelling of 340921031 in words is "three hundred forty million, nine hundred twenty-one thousand, thirty-one".