623113340 has 12 divisors (see below), whose sum is σ = 1308538056. Its totient is φ = 249245328.

The previous prime is 623113331. The next prime is 623113349. The reversal of 623113340 is 43311326.

It is an interprime number because it is at equal distance from previous prime (623113331) and next prime (623113349).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623113349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15577814 + ... + 15577853.

It is an arithmetic number, because the mean of its divisors is an integer number (109044838).

Almost surely, 2^623113340 is an apocalyptic number.

It is an amenable number.

623113340 is an abundant number, since it is smaller than the sum of its proper divisors (685424716).

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

623113340 is a wasteful number, since it uses less digits than its factorization.

623113340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31155676 (or 31155674 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 623113340 is about 24962.2382810516. The cubic root of 623113340 is about 854.1268013703.

Adding to 623113340 its reverse (43311326), we get a palindrome (666424666).

The spelling of 623113340 in words is "six hundred twenty-three million, one hundred thirteen thousand, three hundred forty".