290143948 has 12 divisors (see below), whose sum is σ = 509080320. Its totient is φ = 144692432.

The previous prime is 290143907. The next prime is 290143979. The reversal of 290143948 is 849341092.

It is a super-2 number, since 2×290143948² = 168367021122053408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 290143948.

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, 93163 + ... + 96226.

It is an arithmetic number, because the mean of its divisors is an integer number (42423360).

Almost surely, 2^290143948 is an apocalyptic number.

It is an amenable number.

290143948 is a deficient number, since it is larger than the sum of its proper divisors (218936372).

290143948 is a wasteful number, since it uses less digits than its factorization.

290143948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189776 (or 189774 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 290143948 is about 17033.6123003901. The cubic root of 290143948 is about 662.0200947403.

The spelling of 290143948 in words is "two hundred ninety million, one hundred forty-three thousand, nine hundred forty-eight".