290738132 has 6 divisors (see below), whose sum is σ = 508791738. Its totient is φ = 145369064.

The previous prime is 290738111. The next prime is 290738167. The reversal of 290738132 is 231837092.

It can be written as a sum of positive squares in only one way, i.e., 215326276 + 75411856 = 14674^2 + 8684^2 .

It is a super-2 number, since 2×290738132² = 169057322797698848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 290738092 and 290738101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36342263 + ... + 36342270.

It is an arithmetic number, because the mean of its divisors is an integer number (84798623).

Almost surely, 2^290738132 is an apocalyptic number.

It is an amenable number.

290738132 is a deficient number, since it is larger than the sum of its proper divisors (218053606).

290738132 is a wasteful number, since it uses less digits than its factorization.

290738132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72684537 (or 72684535 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 290738132 is about 17051.0448946685. The cubic root of 290738132 is about 662.4717022208.

The spelling of 290738132 in words is "two hundred ninety million, seven hundred thirty-eight thousand, one hundred thirty-two".