290379380 has 48 divisors (see below), whose sum is σ = 647377920. Its totient is φ = 109029888.

The previous prime is 290379373. The next prime is 290379389. The reversal of 290379380 is 83973092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290379389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161969 + ... + 163751.

It is an arithmetic number, because the mean of its divisors is an integer number (13487040).

Almost surely, 2^290379380 is an apocalyptic number.

290379380 is a gapful number since it is divisible by the number (20) 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 290379380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323688960).

290379380 is an abundant number, since it is smaller than the sum of its proper divisors (356998540).

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

290379380 is a wasteful number, since it uses less digits than its factorization.

290379380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 290379380 is about 17040.5217056286. The cubic root of 290379380 is about 662.1991076960.

The spelling of 290379380 in words is "two hundred ninety million, three hundred seventy-nine thousand, three hundred eighty".