290738028 has 24 divisors (see below), whose sum is σ = 775301632. Its totient is φ = 83067984.

The previous prime is 290737987. The next prime is 290738033. The reversal of 290738028 is 820837092.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730500 + ... + 1730667.

Almost surely, 2^290738028 is an apocalyptic number.

290738028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

290738028 is an abundant number, since it is smaller than the sum of its proper divisors (484563604).

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

290738028 is a wasteful number, since it uses less digits than its factorization.

290738028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461181 (or 3461179 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 290738028 is about 17051.0418450017. The cubic root of 290738028 is about 662.4716232298.

The spelling of 290738028 in words is "two hundred ninety million, seven hundred thirty-eight thousand, twenty-eight".