339942840 has 32 divisors (see below), whose sum is σ = 1019828880. Its totient is φ = 90651392.

The previous prime is 339942833. The next prime is 339942859. The reversal of 339942840 is 48249933.

It is a happy number.

It is a super-2 number, since 2×339942840² = 231122268934531200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 339942792 and 339942801.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1416309 + ... + 1416548.

Almost surely, 2^339942840 is an apocalyptic number.

339942840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

339942840 is an abundant number, since it is smaller than the sum of its proper divisors (679886040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

339942840 is a wasteful number, since it uses less digits than its factorization.

339942840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832871 (or 2832867 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 339942840 is about 18437.5388813149. The cubic root of 339942840 is about 697.9140897487.

The spelling of 339942840 in words is "three hundred thirty-nine million, nine hundred forty-two thousand, eight hundred forty".