138782802 has 16 divisors (see below), whose sum is σ = 292174560. Its totient is φ = 43826112.

The previous prime is 138782737. The next prime is 138782803. The reversal of 138782802 is 208287831.

It is a super-2 number, since 2×138782802² = 38521332261942408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138782803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608583 + ... + 608810.

It is an arithmetic number, because the mean of its divisors is an integer number (18260910).

Almost surely, 2^138782802 is an apocalyptic number.

138782802 is an abundant number, since it is smaller than the sum of its proper divisors (153391758).

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

138782802 is a wasteful number, since it uses less digits than its factorization.

138782802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217417.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 138782802 is about 11780.6112744628. The cubic root of 138782802 is about 517.7401960882.

The spelling of 138782802 in words is "one hundred thirty-eight million, seven hundred eighty-two thousand, eight hundred two".