20078332 has 12 divisors (see below), whose sum is σ = 35223496. Its totient is φ = 10014480.

The previous prime is 20078299. The next prime is 20078339. The reversal of 20078332 is 23387002.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20078297 and 20078306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20078339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4278 + ... + 7645.

Almost surely, 2^20078332 is an apocalyptic number.

It is an amenable number.

20078332 is a deficient number, since it is larger than the sum of its proper divisors (15145164).

20078332 is a wasteful number, since it uses less digits than its factorization.

20078332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348 (or 12346 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20078332 is about 4480.8851804080. The cubic root of 20078332 is about 271.7956762814.

The spelling of 20078332 in words is "twenty million, seventy-eight thousand, three hundred thirty-two".