20453370 has 32 divisors (see below), whose sum is σ = 56101248. Its totient is φ = 4675008.

The previous prime is 20453327. The next prime is 20453401. The reversal of 20453370 is 7335402.

It is a self number, because there is not a number n which added to its sum of digits gives 20453370.

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, 48489 + ... + 48908.

It is an arithmetic number, because the mean of its divisors is an integer number (1753164).

Almost surely, 2^20453370 is an apocalyptic number.

20453370 is an abundant number, since it is smaller than the sum of its proper divisors (35647878).

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

20453370 is a wasteful number, since it uses less digits than its factorization.

20453370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97414.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20453370 is about 4522.5402154099. The cubic root of 20453370 is about 273.4775149820.

Adding to 20453370 its reverse (7335402), we get a palindrome (27788772).

The spelling of 20453370 in words is "twenty million, four hundred fifty-three thousand, three hundred seventy".