290945346 has 16 divisors (see below), whose sum is σ = 582357600. Its totient is φ = 96903968.

The previous prime is 290945339. The next prime is 290945351. The reversal of 290945346 is 643549092.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 290945298 and 290945307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11076 + ... + 26543.

It is an arithmetic number, because the mean of its divisors is an integer number (36397350).

Almost surely, 2^290945346 is an apocalyptic number.

290945346 is an abundant number, since it is smaller than the sum of its proper divisors (291412254).

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

290945346 is a wasteful number, since it uses less digits than its factorization.

290945346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38913.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 290945346 is about 17057.1200968980. The cubic root of 290945346 is about 662.6290497863.

The spelling of 290945346 in words is "two hundred ninety million, nine hundred forty-five thousand, three hundred forty-six".