20370768 has 80 divisors (see below), whose sum is σ = 58871232. Its totient is φ = 6016000.

The previous prime is 20370761. The next prime is 20370817. The reversal of 20370768 is 86707302.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20370761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21178 + ... + 22118.

Almost surely, 2^20370768 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 20370768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29435616).

20370768 is an abundant number, since it is smaller than the sum of its proper divisors (38500464).

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

20370768 is a wasteful number, since it uses less digits than its factorization.

20370768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 20370768 is about 4513.3987193688. The cubic root of 20370768 is about 273.1088672055.

The spelling of 20370768 in words is "twenty million, three hundred seventy thousand, seven hundred sixty-eight".