42520742 has 8 divisors (see below), whose sum is σ = 69579432. Its totient is φ = 19327600.

The previous prime is 42520741. The next prime is 42520771. The reversal of 42520742 is 24702524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966359 + ... + 966402.

It is an arithmetic number, because the mean of its divisors is an integer number (8697429).

Almost surely, 2^42520742 is an apocalyptic number.

42520742 is a deficient number, since it is larger than the sum of its proper divisors (27058690).

42520742 is a wasteful number, since it uses less digits than its factorization.

42520742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932774.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 42520742 is about 6520.7930499288. The cubic root of 42520742 is about 349.0333654469.

The spelling of 42520742 in words is "forty-two million, five hundred twenty thousand, seven hundred forty-two".