20480370 has 16 divisors (see below), whose sum is σ = 49152960. Its totient is φ = 5461424.

The previous prime is 20480363. The next prime is 20480371. The reversal of 20480370 is 7308402.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20480370.

It is not an unprimeable number, because it can be changed into a prime (20480371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341310 + ... + 341369.

It is an arithmetic number, because the mean of its divisors is an integer number (3072060).

Almost surely, 2^20480370 is an apocalyptic number.

20480370 is an abundant number, since it is smaller than the sum of its proper divisors (28672590).

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

20480370 is a wasteful number, since it uses less digits than its factorization.

20480370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682689.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20480370 is about 4525.5242790201. The cubic root of 20480370 is about 273.5977990914.

Adding to 20480370 its reverse (7308402), we get a palindrome (27788772).

The spelling of 20480370 in words is "twenty million, four hundred eighty thousand, three hundred seventy".