20095380 has 36 divisors (see below), whose sum is σ = 60956532. Its totient is φ = 5358720.

The previous prime is 20095363. The next prime is 20095381. The reversal of 20095380 is 8359002.

It can be written as a sum of positive squares in 2 ways, for example, as 6874884 + 13220496 = 2622^2 + 3636^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20095381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55641 + ... + 56000.

It is an arithmetic number, because the mean of its divisors is an integer number (1693237).

Almost surely, 2^20095380 is an apocalyptic number.

20095380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20095380 is an abundant number, since it is smaller than the sum of its proper divisors (40861152).

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

20095380 is a wasteful number, since it uses less digits than its factorization.

20095380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111656 (or 111651 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 20095380 is about 4482.7870794853. The cubic root of 20095380 is about 271.8725794473.

The spelling of 20095380 in words is "twenty million, ninety-five thousand, three hundred eighty".