290078635672 has 64 divisors (see below), whose sum is σ = 624439368000. Its totient is φ = 123751864320.

The previous prime is 290078635667. The next prime is 290078635673. The reversal of 290078635672 is 276536870092.

It is a super-2 number, since 2×290078635672² (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 (290078635673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16498278 + ... + 16515850.

It is an arithmetic number, because the mean of its divisors is an integer number (9756865125).

Almost surely, 2^290078635672 is an apocalyptic number.

It is an amenable number.

290078635672 is an abundant number, since it is smaller than the sum of its proper divisors (334360732328).

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

290078635672 is a wasteful number, since it uses less digits than its factorization.

290078635672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18916 (or 18912 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 290078635672 in words is "two hundred ninety billion, seventy-eight million, six hundred thirty-five thousand, six hundred seventy-two".