623416340 has 36 divisors (see below), whose sum is σ = 1331146908. Its totient is φ = 245249280.

The previous prime is 623416331. The next prime is 623416349. The reversal of 623416340 is 43614326.

It is an interprime number because it is at equal distance from previous prime (623416331) and next prime (623416349).

It can be written as a sum of positive squares in 6 ways, for example, as 366263044 + 257153296 = 19138^2 + 16036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623416349) 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, 70232 + ... + 78608.

It is an arithmetic number, because the mean of its divisors is an integer number (36976303).

Almost surely, 2^623416340 is an apocalyptic number.

It is an amenable number.

623416340 is an abundant number, since it is smaller than the sum of its proper divisors (707730568).

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

623416340 is a wasteful number, since it uses less digits than its factorization.

623416340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8508 (or 8445 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 623416340 is about 24968.3067107083. The cubic root of 623416340 is about 854.2652237443.

The spelling of 623416340 in words is "six hundred twenty-three million, four hundred sixteen thousand, three hundred forty".