42481089 has 18 divisors (see below), whose sum is σ = 71380530. Its totient is φ = 24274656.

The previous prime is 42481063. The next prime is 42481099. The reversal of 42481089 is 98018424.

42481089 = 907² + 908² + ... + 955².

It can be written as a sum of positive squares in only one way, i.e., 33837489 + 8643600 = 5817^2 + 2940^2 .

It is not a de Polignac number, because 42481089 - 2⁸ = 42480833 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42481099) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47724 + ... + 48605.

It is an arithmetic number, because the mean of its divisors is an integer number (3965585).

Almost surely, 2^42481089 is an apocalyptic number.

42481089 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

42481089 is a deficient number, since it is larger than the sum of its proper divisors (28899441).

42481089 is a wasteful number, since it uses less digits than its factorization.

42481089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96349 (or 96339 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 42481089 is about 6517.7518363313. The cubic root of 42481089 is about 348.9248339092.

The spelling of 42481089 in words is "forty-two million, four hundred eighty-one thousand, eighty-nine".