380040388 has 48 divisors (see below), whose sum is σ = 825094144. Its totient is φ = 149143680.

The previous prime is 380040379. The next prime is 380040403. The reversal of 380040388 is 883040083.

It is a happy number.

It is a super-2 number, since 2×380040388² = 288861393022381088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42118 + ... + 50338.

Almost surely, 2^380040388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380040388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412547072).

380040388 is an abundant number, since it is smaller than the sum of its proper divisors (445053756).

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

380040388 is a wasteful number, since it uses less digits than its factorization.

380040388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372 (or 8370 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 380040388 is about 19494.6245924357. The cubic root of 380040388 is about 724.3413045406.

The spelling of 380040388 in words is "three hundred eighty million, forty thousand, three hundred eighty-eight".