290678244 has 12 divisors (see below), whose sum is σ = 678249264. Its totient is φ = 96892744.

The previous prime is 290678231. The next prime is 290678287. The reversal of 290678244 is 442876092.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 290678196 and 290678205.

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, 12111582 + ... + 12111605.

It is an arithmetic number, because the mean of its divisors is an integer number (56520772).

Almost surely, 2^290678244 is an apocalyptic number.

It is an amenable number.

290678244 is an abundant number, since it is smaller than the sum of its proper divisors (387571020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290678244 is a wasteful number, since it uses less digits than its factorization.

290678244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24223194 (or 24223192 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 290678244 is about 17049.2886655133. The cubic root of 290678244 is about 662.4262124537.

The spelling of 290678244 in words is "two hundred ninety million, six hundred seventy-eight thousand, two hundred forty-four".