290131426 has 16 divisors (see below), whose sum is σ = 471454200. Its totient is φ = 133904784.

The previous prime is 290131411. The next prime is 290131441. The reversal of 290131426 is 624131092.

It is an interprime number because it is at equal distance from previous prime (290131411) and next prime (290131441).

It can be written as a sum of positive squares in 4 ways, for example, as 6175225 + 283956201 = 2485^2 + 16851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 290131394 and 290131403.

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, 28621 + ... + 37408.

Almost surely, 2^290131426 is an apocalyptic number.

290131426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

290131426 is a deficient number, since it is larger than the sum of its proper divisors (181322774).

290131426 is an equidigital number, since it uses as much as digits as its factorization.

290131426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66070 (or 66044 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 290131426 is about 17033.2447290585. The cubic root of 290131426 is about 662.0105708069.

The spelling of 290131426 in words is "two hundred ninety million, one hundred thirty-one thousand, four hundred twenty-six".