290764436 has 24 divisors (see below), whose sum is σ = 531573504. Its totient is φ = 138900960.

The previous prime is 290764421. The next prime is 290764451. The reversal of 290764436 is 634467092.

It is an interprime number because it is at equal distance from previous prime (290764421) and next prime (290764451).

It is a junction number, because it is equal to n+sod(n) for n = 290764393 and 290764402.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 129806 + ... + 132026.

It is an arithmetic number, because the mean of its divisors is an integer number (22148896).

Almost surely, 2^290764436 is an apocalyptic number.

It is an amenable number.

290764436 is a deficient number, since it is larger than the sum of its proper divisors (240809068).

290764436 is a wasteful number, since it uses less digits than its factorization.

290764436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671 (or 3669 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 290764436 is about 17051.8162082518. The cubic root of 290764436 is about 662.4916802563.

The spelling of 290764436 in words is "two hundred ninety million, seven hundred sixty-four thousand, four hundred thirty-six".