87450444 has 36 divisors (see below), whose sum is σ = 221341120. Its totient is φ = 29112480.

The previous prime is 87450443. The next prime is 87450469. The reversal of 87450444 is 44405478.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 87450399 and 87450408.

It is not an unprimeable number, because it can be changed into a prime (87450443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48837 + ... + 50595.

Almost surely, 2^87450444 is an apocalyptic number.

It is an amenable number.

87450444 is an abundant number, since it is smaller than the sum of its proper divisors (133890676).

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

87450444 is a wasteful number, since it uses less digits than its factorization.

87450444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150 (or 3145 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 87450444 is about 9351.4942121567. The cubic root of 87450444 is about 443.8681736712.

The spelling of 87450444 in words is "eighty-seven million, four hundred fifty thousand, four hundred forty-four".