339890661 has 24 divisors (see below), whose sum is σ = 555426144. Its totient is φ = 205992720.

The previous prime is 339890657. The next prime is 339890671. The reversal of 339890661 is 166098933.

It is not a de Polignac number, because 339890661 - 2² = 339890657 is a prime.

It is a super-2 number, since 2×339890661² = 231051322870033842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339890651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60906 + ... + 66251.

It is an arithmetic number, because the mean of its divisors is an integer number (23142756).

Almost surely, 2^339890661 is an apocalyptic number.

It is an amenable number.

339890661 is a deficient number, since it is larger than the sum of its proper divisors (215535483).

339890661 is a wasteful number, since it uses less digits than its factorization.

339890661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127183 (or 127171 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 339890661 is about 18436.1238062669. The cubic root of 339890661 is about 697.8783795072.

The spelling of 339890661 in words is "three hundred thirty-nine million, eight hundred ninety thousand, six hundred sixty-one".