623069642 has 8 divisors (see below), whose sum is σ = 1006497156. Its totient is φ = 287570592.

The previous prime is 623069633. The next prime is 623069719. The reversal of 623069642 is 246960326.

It can be written as a sum of positive squares in 2 ways, for example, as 529966441 + 93103201 = 23021^2 + 9649^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 623069596 and 623069605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11982083 + ... + 11982134.

Almost surely, 2^623069642 is an apocalyptic number.

623069642 is a deficient number, since it is larger than the sum of its proper divisors (383427514).

623069642 is a wasteful number, since it uses less digits than its factorization.

623069642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23964232.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 623069642 is about 24961.3629836193. The cubic root of 623069642 is about 854.1068346949.

The spelling of 623069642 in words is "six hundred twenty-three million, sixty-nine thousand, six hundred forty-two".