1630568742 has 16 divisors (see below), whose sum is σ = 3557604672. Its totient is φ = 494111720.

The previous prime is 1630568711. The next prime is 1630568743. The reversal of 1630568742 is 2478650361.

It is a junction number, because it is equal to n+sod(n) for n = 1630568694 and 1630568703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630568743) 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, 12352728 + ... + 12352859.

It is an arithmetic number, because the mean of its divisors is an integer number (222350292).

Almost surely, 2^1630568742 is an apocalyptic number.

1630568742 is an abundant number, since it is smaller than the sum of its proper divisors (1927035930).

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

1630568742 is a wasteful number, since it uses less digits than its factorization.

1630568742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24705603.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 1630568742 is about 40380.3014104650. The cubic root of 1630568742 is about 1177.0087846106.

The spelling of 1630568742 in words is "one billion, six hundred thirty million, five hundred sixty-eight thousand, seven hundred forty-two".