20674224 has 40 divisors (see below), whose sum is σ = 59343920. Its totient is φ = 6891264.

The previous prime is 20674207. The next prime is 20674237. The reversal of 20674224 is 42247602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23497 + ... + 24360.

It is an arithmetic number, because the mean of its divisors is an integer number (1483598).

Almost surely, 2^20674224 is an apocalyptic number.

20674224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20674224 is an abundant number, since it is smaller than the sum of its proper divisors (38669696).

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

20674224 is a wasteful number, since it uses less digits than its factorization.

20674224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47874 (or 47862 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 20674224 is about 4546.8916855364. The cubic root of 20674224 is about 274.4583232734.

The spelling of 20674224 in words is "twenty million, six hundred seventy-four thousand, two hundred twenty-four".