20413460 has 24 divisors (see below), whose sum is σ = 43273440. Its totient is φ = 8088224.

The previous prime is 20413457. The next prime is 20413499. The reversal of 20413460 is 6431402.

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 7 ways as a sum of consecutive naturals, for example, 2630 + ... + 6909.

It is an arithmetic number, because the mean of its divisors is an integer number (1803060).

Almost surely, 2^20413460 is an apocalyptic number.

20413460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20413460 is an abundant number, since it is smaller than the sum of its proper divisors (22859980).

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

20413460 is a wasteful number, since it uses less digits than its factorization.

20413460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655 (or 9653 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20413460 is about 4518.1257175957. The cubic root of 20413460 is about 273.2995232157.

Adding to 20413460 its reverse (6431402), we get a palindrome (26844862).

The spelling of 20413460 in words is "twenty million, four hundred thirteen thousand, four hundred sixty".