380031090 has 64 divisors (see below), whose sum is σ = 968008320. Its totient is φ = 95155200.

The previous prime is 380031083. The next prime is 380031101. The reversal of 380031090 is 90130083.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 380031090.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361065 + ... + 362115.

It is an arithmetic number, because the mean of its divisors is an integer number (15125130).

Almost surely, 2^380031090 is an apocalyptic number.

380031090 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 380031090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484004160).

380031090 is an abundant number, since it is smaller than the sum of its proper divisors (587977230).

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

380031090 is a wasteful number, since it uses less digits than its factorization.

380031090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 380031090 is about 19494.3861149819. The cubic root of 380031090 is about 724.3353972909.

It can be divided in two parts, 38003 and 1090, that added together give a palindrome (39093).

The spelling of 380031090 in words is "three hundred eighty million, thirty-one thousand, ninety".