42550880 has 48 divisors (see below), whose sum is σ = 105824880. Its totient is φ = 16123392.

The previous prime is 42550877. The next prime is 42550889. The reversal of 42550880 is 8805524.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42550889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3959 + ... + 10038.

It is an arithmetic number, because the mean of its divisors is an integer number (2204685).

Almost surely, 2^42550880 is an apocalyptic number.

42550880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42550880 is an abundant number, since it is smaller than the sum of its proper divisors (63274000).

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

42550880 is a wasteful number, since it uses less digits than its factorization.

42550880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14031 (or 14023 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 42550880 is about 6523.1035558237. The cubic root of 42550880 is about 349.1158090009.

The spelling of 42550880 in words is "forty-two million, five hundred fifty thousand, eight hundred eighty".