623530352 has 20 divisors (see below), whose sum is σ = 1279154736. Its totient is φ = 293425920.

The previous prime is 623530333. The next prime is 623530357. The reversal of 623530352 is 253035326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623530357) 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, 1145924 + ... + 1146467.

Almost surely, 2^623530352 is an apocalyptic number.

It is an amenable number.

623530352 is an abundant number, since it is smaller than the sum of its proper divisors (655624384).

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

623530352 is a wasteful number, since it uses less digits than its factorization.

623530352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292416 (or 2292410 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 623530352 is about 24970.5897407330. The cubic root of 623530352 is about 854.3172973179.

Adding to 623530352 its reverse (253035326), we get a palindrome (876565678).

The spelling of 623530352 in words is "six hundred twenty-three million, five hundred thirty thousand, three hundred fifty-two".