42445760 has 84 divisors (see below), whose sum is σ = 117619272. Its totient is φ = 14547456.

The previous prime is 42445759. The next prime is 42445801. The reversal of 42445760 is 6754424.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14327 + ... + 17033.

Almost surely, 2^42445760 is an apocalyptic number.

42445760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42445760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58809636).

42445760 is an abundant number, since it is smaller than the sum of its proper divisors (75173512).

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

42445760 is a wasteful number, since it uses less digits than its factorization.

42445760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 42445760 is about 6515.0410589650. The cubic root of 42445760 is about 348.8280803923.

The spelling of 42445760 in words is "forty-two million, four hundred forty-five thousand, seven hundred sixty".