290197395420 has 24 divisors (see below), whose sum is σ = 812552707344. Its totient is φ = 77385972096.

The previous prime is 290197395361. The next prime is 290197395497. The reversal of 290197395420 is 24593791092.

It is a congruent number.

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, 2418311569 + ... + 2418311688.

It is an arithmetic number, because the mean of its divisors is an integer number (33856362806).

Almost surely, 2^290197395420 is an apocalyptic number.

290197395420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290197395420 is an abundant number, since it is smaller than the sum of its proper divisors (522355311924).

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

290197395420 is a wasteful number, since it uses less digits than its factorization.

290197395420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4836623269 (or 4836623267 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 290197395420 in words is "two hundred ninety billion, one hundred ninety-seven million, three hundred ninety-five thousand, four hundred twenty".