90029002 has 32 divisors (see below), whose sum is σ = 157836672. Its totient is φ = 37718784.

The previous prime is 90028997. The next prime is 90029003. The reversal of 90029002 is 20092009.

It is a super-2 number, since 2×90029002² = 16210442402232008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90029003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139693 + ... + 140335.

It is an arithmetic number, because the mean of its divisors is an integer number (4932396).

Almost surely, 2^90029002 is an apocalyptic number.

90029002 is a deficient number, since it is larger than the sum of its proper divisors (67807670).

90029002 is a wasteful number, since it uses less digits than its factorization.

90029002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 90029002 is about 9488.3613969958. The cubic root of 90029002 is about 448.1886064121.

Adding to 90029002 its reverse (20092009), we get a palindrome (110121011).

The spelling of 90029002 in words is "ninety million, twenty-nine thousand, two".