5642665242 has 32 divisors (see below), whose sum is σ = 11638944000. Its totient is φ = 1822379328.

The previous prime is 5642665241. The next prime is 5642665247. The reversal of 5642665242 is 2425662465.

It is a junction number, because it is equal to n+sod(n) for n = 5642665194 and 5642665203.

It is not an unprimeable number, because it can be changed into a prime (5642665241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117 + ... + 106232.

It is an arithmetic number, because the mean of its divisors is an integer number (363717000).

Almost surely, 2^5642665242 is an apocalyptic number.

5642665242 is an abundant number, since it is smaller than the sum of its proper divisors (5996278758).

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

5642665242 is a wasteful number, since it uses less digits than its factorization.

5642665242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106630.

The product of its digits is 691200, while the sum is 42.

The square root of 5642665242 is about 75117.6759624524. The cubic root of 5642665242 is about 1780.3064365324.

The spelling of 5642665242 in words is "five billion, six hundred forty-two million, six hundred sixty-five thousand, two hundred forty-two".