42097542 has 32 divisors (see below), whose sum is σ = 90035712. Its totient is φ = 13075584.

The previous prime is 42097541. The next prime is 42097547. The reversal of 42097542 is 24579024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42097541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8503 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (2813616).

Almost surely, 2^42097542 is an apocalyptic number.

42097542 is an abundant number, since it is smaller than the sum of its proper divisors (47938170).

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

42097542 is a wasteful number, since it uses less digits than its factorization.

42097542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 42097542 is about 6488.2618627796. The cubic root of 42097542 is about 347.8715505596.

The spelling of 42097542 in words is "forty-two million, ninety-seven thousand, five hundred forty-two".