290145692 has 6 divisors (see below), whose sum is σ = 507754968. Its totient is φ = 145072844.

The previous prime is 290145649. The next prime is 290145697. The reversal of 290145692 is 296541092.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290145697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36268208 + ... + 36268215.

It is an arithmetic number, because the mean of its divisors is an integer number (84625828).

Almost surely, 2^290145692 is an apocalyptic number.

It is an amenable number.

290145692 is a deficient number, since it is larger than the sum of its proper divisors (217609276).

290145692 is a wasteful number, since it uses less digits than its factorization.

290145692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72536427 (or 72536425 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 290145692 is about 17033.6634932125. The cubic root of 290145692 is about 662.0214211632.

The spelling of 290145692 in words is "two hundred ninety million, one hundred forty-five thousand, six hundred ninety-two".