20474260 has 24 divisors (see below), whose sum is σ = 44384256. Its totient is φ = 7925280.

The previous prime is 20474257. The next prime is 20474263. The reversal of 20474260 is 6247402.

It is an interprime number because it is at equal distance from previous prime (20474257) and next prime (20474263).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20474263) 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 7 ways as a sum of consecutive naturals, for example, 15892 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (1849344).

Almost surely, 2^20474260 is an apocalyptic number.

20474260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20474260 is an abundant number, since it is smaller than the sum of its proper divisors (23909996).

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

20474260 is a wasteful number, since it uses less digits than its factorization.

20474260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33063 (or 33061 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 20474260 is about 4524.8491687569. The cubic root of 20474260 is about 273.5705885020.

The spelling of 20474260 in words is "twenty million, four hundred seventy-four thousand, two hundred sixty".