20453010 has 32 divisors (see below), whose sum is σ = 49230720. Its totient is φ = 5438208.

The previous prime is 20453009. The next prime is 20453029. The reversal of 20453010 is 1035402.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12394 + ... + 13946.

It is an arithmetic number, because the mean of its divisors is an integer number (1538460).

Almost surely, 2^20453010 is an apocalyptic number.

20453010 is an abundant number, since it is smaller than the sum of its proper divisors (28777710).

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

20453010 is a wasteful number, since it uses less digits than its factorization.

20453010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20453010 is about 4522.5004145937. The cubic root of 20453010 is about 273.4759104790.

Adding to 20453010 its reverse (1035402), we get a palindrome (21488412).

The spelling of 20453010 in words is "twenty million, four hundred fifty-three thousand, ten".