42513888 has 48 divisors (see below), whose sum is σ = 114624720. Its totient is φ = 13787136.

The previous prime is 42513871. The next prime is 42513893. The reversal of 42513888 is 88831524.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2433 + ... + 9536.

It is an arithmetic number, because the mean of its divisors is an integer number (2388015).

Almost surely, 2^42513888 is an apocalyptic number.

42513888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42513888 is an abundant number, since it is smaller than the sum of its proper divisors (72110832).

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

42513888 is a wasteful number, since it uses less digits than its factorization.

42513888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12019 (or 12011 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 42513888 is about 6520.2674791760. The cubic root of 42513888 is about 349.0146106531.

The spelling of 42513888 in words is "forty-two million, five hundred thirteen thousand, eight hundred eighty-eight".