290425946 has 4 divisors (see below), whose sum is σ = 435638922. Its totient is φ = 145212972.

The previous prime is 290425931. The next prime is 290426023. The reversal of 290425946 is 649524092.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 214300321 + 76125625 = 14639^2 + 8725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72606485 + ... + 72606488.

Almost surely, 2^290425946 is an apocalyptic number.

290425946 is a deficient number, since it is larger than the sum of its proper divisors (145212976).

290425946 is a wasteful number, since it uses less digits than its factorization.

290425946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145212975.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 290425946 is about 17041.8879822630. The cubic root of 290425946 is about 662.2345031334.

The spelling of 290425946 in words is "two hundred ninety million, four hundred twenty-five thousand, nine hundred forty-six".