290740464 has 60 divisors (see below), whose sum is σ = 929911216. Its totient is φ = 83068416.

The previous prime is 290740427. The next prime is 290740517. The reversal of 290740464 is 464047092.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143209 + ... + 145224.

Almost surely, 2^290740464 is an apocalyptic number.

290740464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

290740464 is an abundant number, since it is smaller than the sum of its proper divisors (639170752).

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

290740464 is a wasteful number, since it uses less digits than its factorization.

290740464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288454 (or 288445 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 290740464 is about 17051.1132774373. The cubic root of 290740464 is about 662.4734734365.

The spelling of 290740464 in words is "two hundred ninety million, seven hundred forty thousand, four hundred sixty-four".