42742510 has 32 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 16149408.

The previous prime is 42742507. The next prime is 42742523. The reversal of 42742510 is 1524724.

42742510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42742510² = 3653844322200200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17971 + ... + 20209.

It is an arithmetic number, because the mean of its divisors is an integer number (2540160).

Almost surely, 2^42742510 is an apocalyptic number.

42742510 is a deficient number, since it is larger than the sum of its proper divisors (38542610).

42742510 is a wasteful number, since it uses less digits than its factorization.

42742510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42742510 is about 6537.7756156051. The cubic root of 42742510 is about 349.6391110043.

The spelling of 42742510 in words is "forty-two million, seven hundred forty-two thousand, five hundred ten".