20079000 has 192 divisors, whose sum is σ = 71547840. Its totient is φ = 5068800.

The previous prime is 20078987. The next prime is 20079001. The reversal of 20079000 is 97002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20079001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206952 + ... + 207048.

It is an arithmetic number, because the mean of its divisors is an integer number (372645).

Almost surely, 2^20079000 is an apocalyptic number.

20079000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20079000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35773920).

20079000 is an abundant number, since it is smaller than the sum of its proper divisors (51468840).

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

20079000 is a wasteful number, since it uses less digits than its factorization.

20079000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 20079000 is about 4480.9597186317. The cubic root of 20079000 is about 271.7986904345.

The spelling of 20079000 in words is "twenty million, seventy-nine thousand".