623264340 has 24 divisors (see below), whose sum is σ = 1745140320. Its totient is φ = 166203808.

The previous prime is 623264287. The next prime is 623264413. The reversal of 623264340 is 43462326.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 623264298 and 623264307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5193810 + ... + 5193929.

It is an arithmetic number, because the mean of its divisors is an integer number (72714180).

Almost surely, 2^623264340 is an apocalyptic number.

623264340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

623264340 is an abundant number, since it is smaller than the sum of its proper divisors (1121875980).

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

623264340 is a wasteful number, since it uses less digits than its factorization.

623264340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10387751 (or 10387749 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 623264340 is about 24965.2626663530. The cubic root of 623264340 is about 854.1957897453.

It can be divided in two parts, 62326 and 4340, that added together give a palindrome (66666).

The spelling of 623264340 in words is "six hundred twenty-three million, two hundred sixty-four thousand, three hundred forty".