138032298 has 24 divisors (see below), whose sum is σ = 299497536. Its totient is φ = 45945000.

The previous prime is 138032287. The next prime is 138032303. The reversal of 138032298 is 892230831.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8413 + ... + 18623.

It is an arithmetic number, because the mean of its divisors is an integer number (12479064).

Almost surely, 2^138032298 is an apocalyptic number.

138032298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

138032298 is an abundant number, since it is smaller than the sum of its proper divisors (161465238).

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

138032298 is a wasteful number, since it uses less digits than its factorization.

138032298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970 (or 10967 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 138032298 is about 11748.7147382171. The cubic root of 138032298 is about 516.8052372451.

The spelling of 138032298 in words is "one hundred thirty-eight million, thirty-two thousand, two hundred ninety-eight".