20161460 has 48 divisors (see below), whose sum is σ = 46654272. Its totient is φ = 7257600.

The previous prime is 20161457. The next prime is 20161483. The reversal of 20161460 is 6416102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24455 + ... + 25265.

It is an arithmetic number, because the mean of its divisors is an integer number (971964).

Almost surely, 2^20161460 is an apocalyptic number.

20161460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20161460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23327136).

20161460 is an abundant number, since it is smaller than the sum of its proper divisors (26492812).

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

20161460 is a wasteful number, since it uses less digits than its factorization.

20161460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20161460 is about 4490.1514451074. The cubic root of 20161460 is about 272.1702545685.

Adding to 20161460 its reverse (6416102), we get a palindrome (26577562).

The spelling of 20161460 in words is "twenty million, one hundred sixty-one thousand, four hundred sixty".