245624399 has 8 divisors (see below), whose sum is σ = 251899200. Its totient is φ = 239363200.

The previous prime is 245624329. The next prime is 245624413. The reversal of 245624399 is 993426542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245624399 - 2²⁰ = 244575823 is a prime.

It is a super-2 number, since 2×245624399² = 120662690768222402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245624329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40154 + ... + 45864.

It is an arithmetic number, because the mean of its divisors is an integer number (31487400).

Almost surely, 2^245624399 is an apocalyptic number.

245624399 is a deficient number, since it is larger than the sum of its proper divisors (6274801).

245624399 is a wasteful number, since it uses less digits than its factorization.

245624399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801.

The product of its digits is 466560, while the sum is 44.

The square root of 245624399 is about 15672.4088448458. The cubic root of 245624399 is about 626.2635974062.

The spelling of 245624399 in words is "two hundred forty-five million, six hundred twenty-four thousand, three hundred ninety-nine".