138802000 has 40 divisors (see below), whose sum is σ = 335628072. Its totient is φ = 55520000.

The previous prime is 138801953. The next prime is 138802003. The reversal of 138802000 is 208831.

It can be written as a sum of positive squares in 4 ways, for example, as 2286144 + 136515856 = 1512^2 + 11684^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138802003) 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, 32701 + ... + 36700.

Almost surely, 2^138802000 is an apocalyptic number.

138802000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138802000 is an abundant number, since it is smaller than the sum of its proper divisors (196826072).

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

138802000 is an equidigital number, since it uses as much as digits as its factorization.

138802000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69424 (or 69408 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 138802000 is about 11781.4260596924. The cubic root of 138802000 is about 517.7640682056.

The spelling of 138802000 in words is "one hundred thirty-eight million, eight hundred two thousand".