290172382 has 4 divisors (see below), whose sum is σ = 435258576. Its totient is φ = 145086190.

The previous prime is 290172373. The next prime is 290172391. The reversal of 290172382 is 283271092.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (290172373) and next prime (290172391).

It is a super-2 number, since 2×290172382² = 168400022551107848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72543094 + ... + 72543097.

It is an arithmetic number, because the mean of its divisors is an integer number (108814644).

Almost surely, 2^290172382 is an apocalyptic number.

290172382 is a deficient number, since it is larger than the sum of its proper divisors (145086194).

290172382 is a wasteful number, since it uses less digits than its factorization.

290172382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145086193.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 290172382 is about 17034.4469238071. The cubic root of 290172382 is about 662.0417199423.

The spelling of 290172382 in words is "two hundred ninety million, one hundred seventy-two thousand, three hundred eighty-two".