290381132 has 12 divisors (see below), whose sum is σ = 508791696. Its totient is φ = 145012080.

The previous prime is 290381129. The next prime is 290381153. The reversal of 290381132 is 231183092.

It is a junction number, because it is equal to n+sod(n) for n = 290381095 and 290381104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40928 + ... + 47495.

It is an arithmetic number, because the mean of its divisors is an integer number (42399308).

Almost surely, 2^290381132 is an apocalyptic number.

It is an amenable number.

290381132 is a deficient number, since it is larger than the sum of its proper divisors (218410564).

290381132 is a wasteful number, since it uses less digits than its factorization.

290381132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89248 (or 89246 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 290381132 is about 17040.5731124279. The cubic root of 290381132 is about 662.2004394831.

The spelling of 290381132 in words is "two hundred ninety million, three hundred eighty-one thousand, one hundred thirty-two".