628422742 has 8 divisors (see below), whose sum is σ = 942996600. Its totient is φ = 314090544.

The previous prime is 628422659. The next prime is 628422761. The reversal of 628422742 is 247224826.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53767 + ... + 64402.

It is an arithmetic number, because the mean of its divisors is an integer number (117874575).

Almost surely, 2^628422742 is an apocalyptic number.

628422742 is a deficient number, since it is larger than the sum of its proper divisors (314573858).

628422742 is a wasteful number, since it uses less digits than its factorization.

628422742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120830.

The product of its digits is 86016, while the sum is 37.

The square root of 628422742 is about 25068.3613744497. The cubic root of 628422742 is about 856.5458812853.

The spelling of 628422742 in words is "six hundred twenty-eight million, four hundred twenty-two thousand, seven hundred forty-two".