20466402 has 96 divisors (see below), whose sum is σ = 50397120. Its totient is φ = 5483520.

The previous prime is 20466377. The next prime is 20466437.

20466402 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20466402² = 837747221651208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 553128 + ... + 553164.

It is an arithmetic number, because the mean of its divisors is an integer number (524970).

Almost surely, 2^20466402 is an apocalyptic number.

20466402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20466402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25198560).

20466402 is an abundant number, since it is smaller than the sum of its proper divisors (29930718).

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

20466402 is a wasteful number, since it uses less digits than its factorization.

20466402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20466402 is about 4523.9807691899. The cubic root of 20466402 is about 273.5355853197.

It can be divided in two parts, 2046 and 6402, that added together give a palindrome (8448).

The spelling of 20466402 in words is "twenty million, four hundred sixty-six thousand, four hundred two".