42583642 has 4 divisors (see below), whose sum is σ = 63875466. Its totient is φ = 21291820.

The previous prime is 42583627. The next prime is 42583643. The reversal of 42583642 is 24638524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34916281 + 7667361 = 5909^2 + 2769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42583598 and 42583607.

It is not an unprimeable number, because it can be changed into a prime (42583643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10645909 + ... + 10645912.

Almost surely, 2^42583642 is an apocalyptic number.

42583642 is a deficient number, since it is larger than the sum of its proper divisors (21291824).

42583642 is a wasteful number, since it uses less digits than its factorization.

42583642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21291823.

The product of its digits is 46080, while the sum is 34.

The square root of 42583642 is about 6525.6143005850. The cubic root of 42583642 is about 349.2053864503.

The spelling of 42583642 in words is "forty-two million, five hundred eighty-three thousand, six hundred forty-two".