290968406 has 8 divisors (see below), whose sum is σ = 437210760. Its totient is φ = 145231488.

The previous prime is 290968351. The next prime is 290968411. The reversal of 290968406 is 604869092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×290968406² = 169325226580361672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124916 + ... + 127223.

It is an arithmetic number, because the mean of its divisors is an integer number (54651345).

Almost surely, 2^290968406 is an apocalyptic number.

290968406 is a deficient number, since it is larger than the sum of its proper divisors (146242354).

290968406 is a wasteful number, since it uses less digits than its factorization.

290968406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252718.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 290968406 is about 17057.7960475555. The cubic root of 290968406 is about 662.6465557342.

The spelling of 290968406 in words is "two hundred ninety million, nine hundred sixty-eight thousand, four hundred six".