38133780 has 24 divisors (see below), whose sum is σ = 106774752. Its totient is φ = 10168992.

The previous prime is 38133763. The next prime is 38133803. The reversal of 38133780 is 8733183.

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, 317722 + ... + 317841.

It is an arithmetic number, because the mean of its divisors is an integer number (4448948).

Almost surely, 2^38133780 is an apocalyptic number.

38133780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38133780 is an abundant number, since it is smaller than the sum of its proper divisors (68640972).

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

38133780 is a wasteful number, since it uses less digits than its factorization.

38133780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635575 (or 635573 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 38133780 is about 6175.2554603028. The cubic root of 38133780 is about 336.5916093611.

The spelling of 38133780 in words is "thirty-eight million, one hundred thirty-three thousand, seven hundred eighty".