380946690 has 96 divisors (see below), whose sum is σ = 1013126400. Its totient is φ = 99290880.

The previous prime is 380946667. The next prime is 380946733. The reversal of 380946690 is 96649083.

It is a super-2 number, since 2×380946690² = 290240761243912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 931206 + ... + 931614.

It is an arithmetic number, because the mean of its divisors is an integer number (10553400).

Almost surely, 2^380946690 is an apocalyptic number.

380946690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 380946690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506563200).

380946690 is an abundant number, since it is smaller than the sum of its proper divisors (632179710).

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

380946690 is a wasteful number, since it uses less digits than its factorization.

380946690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 380946690 is about 19517.8556711540. The cubic root of 380946690 is about 724.9166388498.

The spelling of 380946690 in words is "three hundred eighty million, nine hundred forty-six thousand, six hundred ninety".