138302374 has 16 divisors (see below), whose sum is σ = 243498528. Its totient is φ = 57670272.

The previous prime is 138302347. The next prime is 138302419. The reversal of 138302374 is 473203831.

138302374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×138302374³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132979 + ... + 134014.

It is an arithmetic number, because the mean of its divisors is an integer number (15218658).

Almost surely, 2^138302374 is an apocalyptic number.

138302374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138302374 is a deficient number, since it is larger than the sum of its proper divisors (105196154).

138302374 is a wasteful number, since it uses less digits than its factorization.

138302374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267039.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 138302374 is about 11760.2029744388. The cubic root of 138302374 is about 517.1420805287.

The spelling of 138302374 in words is "one hundred thirty-eight million, three hundred two thousand, three hundred seventy-four".