42597742 has 16 divisors (see below), whose sum is σ = 69848064. Its totient is φ = 19323000.

The previous prime is 42597739. The next prime is 42597749. The reversal of 42597742 is 24779524.

It is a junction number, because it is equal to n+sod(n) for n = 42597695 and 42597704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42597749) 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, 10867 + ... + 14257.

It is an arithmetic number, because the mean of its divisors is an integer number (4365504).

Almost surely, 2^42597742 is an apocalyptic number.

42597742 is a deficient number, since it is larger than the sum of its proper divisors (27250322).

42597742 is a wasteful number, since it uses less digits than its factorization.

42597742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975.

The product of its digits is 141120, while the sum is 40.

The square root of 42597742 is about 6526.6945692287. The cubic root of 42597742 is about 349.2439243519.

The spelling of 42597742 in words is "forty-two million, five hundred ninety-seven thousand, seven hundred forty-two".