290632380 has 24 divisors (see below), whose sum is σ = 813770832. Its totient is φ = 77501952.

The previous prime is 290632367. The next prime is 290632387. The reversal of 290632380 is 83236092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290632387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2421877 + ... + 2421996.

It is an arithmetic number, because the mean of its divisors is an integer number (33907118).

Almost surely, 2^290632380 is an apocalyptic number.

290632380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290632380 is an abundant number, since it is smaller than the sum of its proper divisors (523138452).

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

290632380 is a wasteful number, since it uses less digits than its factorization.

290632380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843885 (or 4843883 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 290632380 is about 17047.9435710000. The cubic root of 290632380 is about 662.3913708210.

The spelling of 290632380 in words is "two hundred ninety million, six hundred thirty-two thousand, three hundred eighty".