90428002 has 32 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 37610448.

The previous prime is 90427993. The next prime is 90428077. The reversal of 90428002 is 20082409.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 67899 + ... + 69217.

It is an arithmetic number, because the mean of its divisors is an integer number (4989600).

Almost surely, 2^90428002 is an apocalyptic number.

90428002 is a deficient number, since it is larger than the sum of its proper divisors (69239198).

90428002 is a wasteful number, since it uses less digits than its factorization.

90428002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 90428002 is about 9509.3639114296. The cubic root of 90428002 is about 448.8497404790.

The spelling of 90428002 in words is "ninety million, four hundred twenty-eight thousand, two".