20378364 has 48 divisors (see below), whose sum is σ = 48988800. Its totient is φ = 6590656.

The previous prime is 20378357. The next prime is 20378381. The reversal of 20378364 is 46387302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75622 + ... + 75890.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^20378364 is an apocalyptic number.

It is an amenable number.

20378364 is an abundant number, since it is smaller than the sum of its proper divisors (28610436).

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

20378364 is a wasteful number, since it uses less digits than its factorization.

20378364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 20378364 is about 4514.2401353938. The cubic root of 20378364 is about 273.1428092600.

It can be divided in two parts, 2037 and 8364, that added together give a palindrome (10401).

The spelling of 20378364 in words is "twenty million, three hundred seventy-eight thousand, three hundred sixty-four".