20499462 has 48 divisors (see below), whose sum is σ = 46416240. Its totient is φ = 6530496.

The previous prime is 20499449. The next prime is 20499481. The reversal of 20499462 is 26499402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90193 + ... + 90419.

It is an arithmetic number, because the mean of its divisors is an integer number (967005).

Almost surely, 2^20499462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20499462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23208120).

20499462 is an abundant number, since it is smaller than the sum of its proper divisors (25916778).

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

20499462 is a wasteful number, since it uses less digits than its factorization.

20499462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 20499462 is about 4527.6331565179. The cubic root of 20499462 is about 273.6827895299.

It can be divided in two parts, 2049 and 9462, that added together give a palindrome (11511).

The spelling of 20499462 in words is "twenty million, four hundred ninety-nine thousand, four hundred sixty-two".