290173380 has 48 divisors (see below), whose sum is σ = 928556160. Its totient is φ = 66325248.

The previous prime is 290173363. The next prime is 290173381. The reversal of 290173380 is 83371092.

It is not an unprimeable number, because it can be changed into a prime (290173381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345025 + ... + 345864.

It is an arithmetic number, because the mean of its divisors is an integer number (19344920).

Almost surely, 2^290173380 is an apocalyptic number.

290173380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290173380 is an abundant number, since it is smaller than the sum of its proper divisors (638382780).

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

290173380 is a wasteful number, since it uses less digits than its factorization.

290173380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690908 (or 690906 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 290173380 is about 17034.4762173658. The cubic root of 290173380 is about 662.0424789358.

The spelling of 290173380 in words is "two hundred ninety million, one hundred seventy-three thousand, three hundred eighty".