20700234 has 24 divisors (see below), whose sum is σ = 47211840. Its totient is φ = 6536808.

The previous prime is 20700233. The next prime is 20700269. The reversal of 20700234 is 43200702.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20700233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29922 + ... + 30605.

It is an arithmetic number, because the mean of its divisors is an integer number (1967160).

Almost surely, 2^20700234 is an apocalyptic number.

20700234 is an abundant number, since it is smaller than the sum of its proper divisors (26511606).

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

20700234 is a wasteful number, since it uses less digits than its factorization.

20700234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60554 (or 60551 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20700234 is about 4549.7509821967. The cubic root of 20700234 is about 274.5733726442.

Adding to 20700234 its reverse (43200702), we get a palindrome (63900936).

The spelling of 20700234 in words is "twenty million, seven hundred thousand, two hundred thirty-four".