20740110 has 16 divisors (see below), whose sum is σ = 49776336. Its totient is φ = 5530688.

The previous prime is 20740099. The next prime is 20740127. The reversal of 20740110 is 1104702.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20740110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345639 + ... + 345698.

It is an arithmetic number, because the mean of its divisors is an integer number (3111021).

Almost surely, 2^20740110 is an apocalyptic number.

20740110 is an abundant number, since it is smaller than the sum of its proper divisors (29036226).

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

20740110 is a wasteful number, since it uses less digits than its factorization.

20740110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691347.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 20740110 is about 4554.1310916573. The cubic root of 20740110 is about 274.7495681539.

Adding to 20740110 its reverse (1104702), we get a palindrome (21844812).

The spelling of 20740110 in words is "twenty million, seven hundred forty thousand, one hundred ten".