290776452 has 12 divisors (see below), whose sum is σ = 678478416. Its totient is φ = 96925480.

The previous prime is 290776433. The next prime is 290776457. The reversal of 290776452 is 254677092.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (290776457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12115674 + ... + 12115697.

It is an arithmetic number, because the mean of its divisors is an integer number (56539868).

Almost surely, 2^290776452 is an apocalyptic number.

It is an amenable number.

290776452 is an abundant number, since it is smaller than the sum of its proper divisors (387701964).

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

290776452 is a wasteful number, since it uses less digits than its factorization.

290776452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24231378 (or 24231376 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 290776452 is about 17052.1685424464. The cubic root of 290776452 is about 662.5008060747.

The spelling of 290776452 in words is "two hundred ninety million, seven hundred seventy-six thousand, four hundred fifty-two".