1642986342 has 20 divisors (see below), whose sum is σ = 3681506796. Its totient is φ = 547662060.

The previous prime is 1642986313. The next prime is 1642986349. The reversal of 1642986342 is 2436892461.

1642986342 is a `hidden beast` number, since 1 + 6 + 4 + 2 + 9 + 8 + 634 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642986349) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5070784 + ... + 5071107.

Almost surely, 2^1642986342 is an apocalyptic number.

1642986342 is an abundant number, since it is smaller than the sum of its proper divisors (2038520454).

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

1642986342 is a wasteful number, since it uses less digits than its factorization.

1642986342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141905 (or 10141896 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 1642986342 is about 40533.7679225606. The cubic root of 1642986342 is about 1179.9890696105.

The spelling of 1642986342 in words is "one billion, six hundred forty-two million, nine hundred eighty-six thousand, three hundred forty-two".