90194002 has 16 divisors (see below), whose sum is σ = 140223960. Its totient is φ = 43458688.

The previous prime is 90193997. The next prime is 90194023. The reversal of 90194002 is 20049109.

It can be written as a sum of positive squares in 4 ways, for example, as 90041121 + 152881 = 9489^2 + 391^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38118 + ... + 40414.

Almost surely, 2^90194002 is an apocalyptic number.

90194002 is a deficient number, since it is larger than the sum of its proper divisors (50029958).

90194002 is a wasteful number, since it uses less digits than its factorization.

90194002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 90194002 is about 9497.0522795234. The cubic root of 90194002 is about 448.4622441161.

The spelling of 90194002 in words is "ninety million, one hundred ninety-four thousand, two".