381009152 has 36 divisors (see below), whose sum is σ = 763556640. Its totient is φ = 189746688.

The previous prime is 381009107. The next prime is 381009157. The reversal of 381009152 is 251900183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381009157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64499 + ... + 70157.

Almost surely, 2^381009152 is an apocalyptic number.

381009152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381009152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381778320).

381009152 is an abundant number, since it is smaller than the sum of its proper divisors (382547488).

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

381009152 is an equidigital number, since it uses as much as digits as its factorization.

381009152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938 (or 5924 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 381009152 is about 19519.4557301171. The cubic root of 381009152 is about 724.9562570517.

The spelling of 381009152 in words is "three hundred eighty-one million, nine thousand, one hundred fifty-two".