90444010 has 8 divisors (see below), whose sum is σ = 162799236. Its totient is φ = 36177600.

The previous prime is 90444001. The next prime is 90444059. The reversal of 90444010 is 1044409.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90193009 + 251001 = 9497^2 + 501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 4522191 + ... + 4522210.

Almost surely, 2^90444010 is an apocalyptic number.

90444010 is a deficient number, since it is larger than the sum of its proper divisors (72355226).

90444010 is a wasteful number, since it uses less digits than its factorization.

90444010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044408.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 90444010 is about 9510.2055708591. The cubic root of 90444010 is about 448.8762247632.

Adding to 90444010 its reverse (1044409), we get a palindrome (91488419).

The spelling of 90444010 in words is "ninety million, four hundred forty-four thousand, ten".