42723975 has 48 divisors (see below), whose sum is σ = 85494528. Its totient is φ = 18378240.

The previous prime is 42723953. The next prime is 42723977. The reversal of 42723975 is 57932724.

It is not a de Polignac number, because 42723975 - 2¹¹ = 42721927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42723977) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6532 + ... + 11318.

It is an arithmetic number, because the mean of its divisors is an integer number (1781136).

Almost surely, 2^42723975 is an apocalyptic number.

42723975 is an abundant number, since it is smaller than the sum of its proper divisors (42770553).

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

42723975 is a wasteful number, since it uses less digits than its factorization.

42723975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824 (or 4819 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 42723975 is about 6536.3579308358. The cubic root of 42723975 is about 349.5885641530.

The spelling of 42723975 in words is "forty-two million, seven hundred twenty-three thousand, nine hundred seventy-five".