20150700 has 36 divisors (see below), whose sum is σ = 58303560. Its totient is φ = 5373440.

The previous prime is 20150699. The next prime is 20150743. The reversal of 20150700 is 705102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 20150700.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33285 + ... + 33884.

Almost surely, 2^20150700 is an apocalyptic number.

20150700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20150700 is an abundant number, since it is smaller than the sum of its proper divisors (38152860).

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

20150700 is a wasteful number, since it uses less digits than its factorization.

20150700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67186 (or 67179 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 20150700 is about 4488.9531073514. The cubic root of 20150700 is about 272.1218276345.

Adding to 20150700 its reverse (705102), we get a palindrome (20855802).

The spelling of 20150700 in words is "twenty million, one hundred fifty thousand, seven hundred".