20494602 has 12 divisors (see below), whose sum is σ = 44405010. Its totient is φ = 6831528.

The previous prime is 20494601. The next prime is 20494603. The reversal of 20494602 is 20649402.

It is an interprime number because it is at equal distance from previous prime (20494601) and next prime (20494603).

It can be written as a sum of positive squares in only one way, i.e., 10439361 + 10055241 = 3231^2 + 3171^2 .

It is a super-2 number, since 2×20494602² = 840057422276808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20494601) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 569277 + ... + 569312.

Almost surely, 2^20494602 is an apocalyptic number.

20494602 is an abundant number, since it is smaller than the sum of its proper divisors (23910408).

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

20494602 is a wasteful number, since it uses less digits than its factorization.

20494602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138597 (or 1138594 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20494602 is about 4527.0964204443. The cubic root of 20494602 is about 273.6611596373.

The spelling of 20494602 in words is "twenty million, four hundred ninety-four thousand, six hundred two".