20694372 has 48 divisors (see below), whose sum is σ = 51996672. Its totient is φ = 6382080.

The previous prime is 20694353. The next prime is 20694379. The reversal of 20694372 is 27349602.

It is not an unprimeable number, because it can be changed into a prime (20694379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11613 + ... + 13275.

It is an arithmetic number, because the mean of its divisors is an integer number (1083264).

Almost surely, 2^20694372 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 20694372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25998336).

20694372 is an abundant number, since it is smaller than the sum of its proper divisors (31302300).

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

20694372 is a wasteful number, since it uses less digits than its factorization.

20694372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 1746 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 20694372 is about 4549.1067255012. The cubic root of 20694372 is about 274.5474518250.

It can be divided in two parts, 2069 and 4372, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 20694372 in words is "twenty million, six hundred ninety-four thousand, three hundred seventy-two".