20460156 has 24 divisors (see below), whose sum is σ = 49816704. Its totient is φ = 6523440.

The previous prime is 20460151. The next prime is 20460157. The reversal of 20460156 is 65106402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460151) 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, 36790 + ... + 37341.

It is an arithmetic number, because the mean of its divisors is an integer number (2075696).

Almost surely, 2^20460156 is an apocalyptic number.

It is an amenable number.

20460156 is an abundant number, since it is smaller than the sum of its proper divisors (29356548).

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

20460156 is a wasteful number, since it uses less digits than its factorization.

20460156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74161 (or 74159 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20460156 is about 4523.2903952764. The cubic root of 20460156 is about 273.5077563426.

Adding to 20460156 its reverse (65106402), we get a palindrome (85566558).

The spelling of 20460156 in words is "twenty million, four hundred sixty thousand, one hundred fifty-six".