338745240 has 80 divisors (see below), whose sum is σ = 1138571280. Its totient is φ = 90331200.

The previous prime is 338745229. The next prime is 338745263. The reversal of 338745240 is 42547833.

It is a happy number.

It is a super-2 number, since 2×338745240² = 229496675245315200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 338745195 and 338745204.

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 19 ways as a sum of consecutive naturals, for example, 49036 + ... + 55515.

It is an arithmetic number, because the mean of its divisors is an integer number (14232141).

Almost surely, 2^338745240 is an apocalyptic number.

338745240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

338745240 is an abundant number, since it is smaller than the sum of its proper divisors (799826040).

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

338745240 is a wasteful number, since it uses less digits than its factorization.

338745240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104574 (or 104561 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 338745240 is about 18405.0330073054. The cubic root of 338745240 is about 697.0935543927.

The spelling of 338745240 in words is "three hundred thirty-eight million, seven hundred forty-five thousand, two hundred forty".