290749473 has 64 divisors (see below), whose sum is σ = 510935040. Its totient is φ = 159969600.

The previous prime is 290749429. The next prime is 290749477. The reversal of 290749473 is 374947092.

290749473 is a `hidden beast` number, since 2 + 90 + 7 + 494 + 73 = 666.

It is not a de Polignac number, because 290749473 - 2¹⁰ = 290748449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290749477) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 630463 + ... + 630923.

It is an arithmetic number, because the mean of its divisors is an integer number (7983360).

Almost surely, 2^290749473 is an apocalyptic number.

It is an amenable number.

290749473 is a deficient number, since it is larger than the sum of its proper divisors (220185567).

290749473 is a wasteful number, since it uses less digits than its factorization.

290749473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 290749473 is about 17051.3774516899. The cubic root of 290749473 is about 662.4803159216.

The spelling of 290749473 in words is "two hundred ninety million, seven hundred forty-nine thousand, four hundred seventy-three".