290891452 has 6 divisors (see below), whose sum is σ = 509060048. Its totient is φ = 145445724.

The previous prime is 290891429. The next prime is 290891453. The reversal of 290891452 is 254198092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290891453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36361428 + ... + 36361435.

Almost surely, 2^290891452 is an apocalyptic number.

It is an amenable number.

290891452 is a deficient number, since it is larger than the sum of its proper divisors (218168596).

290891452 is a wasteful number, since it uses less digits than its factorization.

290891452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72722867 (or 72722865 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 290891452 is about 17055.5402142530. The cubic root of 290891452 is about 662.5881326682.

The spelling of 290891452 in words is "two hundred ninety million, eight hundred ninety-one thousand, four hundred fifty-two".