1662986742 has 16 divisors (see below), whose sum is σ = 3501024960. Its totient is φ = 525153672.

The previous prime is 1662986711. The next prime is 1662986749. The reversal of 1662986742 is 2476892661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662986749) 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, 7293688 + ... + 7293915.

It is an arithmetic number, because the mean of its divisors is an integer number (218814060).

Almost surely, 2^1662986742 is an apocalyptic number.

1662986742 is an abundant number, since it is smaller than the sum of its proper divisors (1838038218).

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

1662986742 is a wasteful number, since it uses less digits than its factorization.

1662986742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14587627.

The product of its digits is 1741824, while the sum is 51.

The square root of 1662986742 is about 40779.7344522987. The cubic root of 1662986742 is about 1184.7578518552.

The spelling of 1662986742 in words is "one billion, six hundred sixty-two million, nine hundred eighty-six thousand, seven hundred forty-two".