20674332 has 192 divisors, whose sum is σ = 67737600. Its totient is φ = 5322240.

The previous prime is 20674331. The next prime is 20674333. The reversal of 20674332 is 23347602.

It is an interprime number because it is at equal distance from previous prime (20674331) and next prime (20674333).

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

It is a junction number, because it is equal to n+sod(n) for n = 20674296 and 20674305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504232 + ... + 504272.

It is an arithmetic number, because the mean of its divisors is an integer number (352800).

Almost surely, 2^20674332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20674332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33868800).

20674332 is an abundant number, since it is smaller than the sum of its proper divisors (47063268).

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

20674332 is a wasteful number, since it uses less digits than its factorization.

20674332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 20674332 is about 4546.9035617660. The cubic root of 20674332 is about 274.4588011865.

The spelling of 20674332 in words is "twenty million, six hundred seventy-four thousand, three hundred thirty-two".