20377692 has 18 divisors (see below), whose sum is σ = 51510368. Its totient is φ = 6792552.

The previous prime is 20377681. The next prime is 20377699. The reversal of 20377692 is 29677302.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 566047 = 20377692 / (2 + 0 + 3 + 7 + 7 + 6 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20377699) 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 5 ways as a sum of consecutive naturals, for example, 282988 + ... + 283059.

Almost surely, 2^20377692 is an apocalyptic number.

It is an amenable number.

20377692 is an abundant number, since it is smaller than the sum of its proper divisors (31132676).

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

20377692 is a wasteful number, since it uses less digits than its factorization.

20377692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566057 (or 566052 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 20377692 is about 4514.1657036489. The cubic root of 20377692 is about 273.1398068275.

The spelling of 20377692 in words is "twenty million, three hundred seventy-seven thousand, six hundred ninety-two".