339649057 has 6 divisors (see below), whose sum is σ = 373333394. Its totient is φ = 308771760.

The previous prime is 339649049. The next prime is 339649117. The reversal of 339649057 is 750946933.

It can be written as a sum of positive squares in only one way, i.e., 215972416 + 123676641 = 14696^2 + 11121^2 .

It is not a de Polignac number, because 339649057 - 2³ = 339649049 is a prime.

It is a super-2 number, since 2×339649057² = 230722963841978498, 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 = 339648998 and 339649016.

It is not an unprimeable number, because it can be changed into a prime (339649357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1403388 + ... + 1403629.

Almost surely, 2^339649057 is an apocalyptic number.

It is an amenable number.

339649057 is a deficient number, since it is larger than the sum of its proper divisors (33684337).

339649057 is a wasteful number, since it uses less digits than its factorization.

339649057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807039 (or 2807028 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 339649057 is about 18429.5701794697. The cubic root of 339649057 is about 697.7129830095.

The spelling of 339649057 in words is "three hundred thirty-nine million, six hundred forty-nine thousand, fifty-seven".