624253642 has 4 divisors (see below), whose sum is σ = 936380466. Its totient is φ = 312126820.

The previous prime is 624253621. The next prime is 624253691. The reversal of 624253642 is 246352426.

624253642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 545736321 + 78517321 = 23361^2 + 8861^2 .

It is a junction number, because it is equal to n+sod(n) for n = 624253598 and 624253607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156063409 + ... + 156063412.

Almost surely, 2^624253642 is an apocalyptic number.

624253642 is a deficient number, since it is larger than the sum of its proper divisors (312126824).

624253642 is a wasteful number, since it uses less digits than its factorization.

624253642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312126823.

The product of its digits is 69120, while the sum is 34.

The square root of 624253642 is about 24985.0683809350. The cubic root of 624253642 is about 854.6475033150.

The spelling of 624253642 in words is "six hundred twenty-four million, two hundred fifty-three thousand, six hundred forty-two".