20161488 has 40 divisors (see below), whose sum is σ = 52452000. Its totient is φ = 6673024.

The previous prime is 20161487. The next prime is 20161513. The reversal of 20161488 is 88416102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20161483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5743 + ... + 8561.

It is an arithmetic number, because the mean of its divisors is an integer number (1311300).

Almost surely, 2^20161488 is an apocalyptic number.

It is an amenable number.

20161488 is an abundant number, since it is smaller than the sum of its proper divisors (32290512).

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

20161488 is a wasteful number, since it uses less digits than its factorization.

20161488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2973 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 20161488 is about 4490.1545630412. The cubic root of 20161488 is about 272.1703805641.

The spelling of 20161488 in words is "twenty million, one hundred sixty-one thousand, four hundred eighty-eight".