290042620628 has 12 divisors (see below), whose sum is σ = 517151465460. Its totient is φ = 142285059072.

The previous prime is 290042620627. The next prime is 290042620631. The reversal of 290042620628 is 826026240092.

It can be written as a sum of positive squares in 2 ways, for example, as 184600841104 + 105441779524 = 429652^2 + 324718^2 .

It is a super-2 number, since 2×290042620628² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290042620627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684062573 + ... + 684062996.

It is an arithmetic number, because the mean of its divisors is an integer number (43095955455).

Almost surely, 2^290042620628 is an apocalyptic number.

It is an amenable number.

290042620628 is a deficient number, since it is larger than the sum of its proper divisors (227108844832).

290042620628 is a wasteful number, since it uses less digits than its factorization.

290042620628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368125626 (or 1368125624 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 290042620628 in words is "two hundred ninety billion, forty-two million, six hundred twenty thousand, six hundred twenty-eight".