20490885352 has 32 divisors (see below), whose sum is σ = 44162870400. Its totient is φ = 8731041984.

The previous prime is 20490885341. The next prime is 20490885361. The reversal of 20490885352 is 25358809402.

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, 1047852 + ... + 1067227.

It is an arithmetic number, because the mean of its divisors is an integer number (1380089700).

Almost surely, 2^20490885352 is an apocalyptic number.

It is an amenable number.

20490885352 is an abundant number, since it is smaller than the sum of its proper divisors (23671985048).

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

20490885352 is a wasteful number, since it uses less digits than its factorization.

20490885352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115265 (or 2115261 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 20490885352 in words is "twenty billion, four hundred ninety million, eight hundred eighty-five thousand, three hundred fifty-two".