338720436 has 36 divisors (see below), whose sum is σ = 859261312. Its totient is φ = 112504464.

The previous prime is 338720423. The next prime is 338720441. The reversal of 338720436 is 634027833.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×338720436² = 229463067528060192, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 338720436.

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 11 ways as a sum of consecutive naturals, for example, 6436 + ... + 26811.

Almost surely, 2^338720436 is an apocalyptic number.

338720436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

338720436 is an abundant number, since it is smaller than the sum of its proper divisors (520540876).

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

338720436 is a wasteful number, since it uses less digits than its factorization.

338720436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33540 (or 33535 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 338720436 is about 18404.3591575474. The cubic root of 338720436 is about 697.0765395110.

The spelling of 338720436 in words is "three hundred thirty-eight million, seven hundred twenty thousand, four hundred thirty-six".