90033388 has 12 divisors (see below), whose sum is σ = 160911072. Its totient is φ = 44058800.

The previous prime is 90033373. The next prime is 90033403. The reversal of 90033388 is 88333009.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90033373) and next prime (90033403).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239263 + ... + 239638.

It is an arithmetic number, because the mean of its divisors is an integer number (13409256).

Almost surely, 2^90033388 is an apocalyptic number.

It is an amenable number.

90033388 is a deficient number, since it is larger than the sum of its proper divisors (70877684).

90033388 is a wasteful number, since it uses less digits than its factorization.

90033388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478952 (or 478950 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 90033388 is about 9488.5925194414. The cubic root of 90033388 is about 448.1958845235.

The spelling of 90033388 in words is "ninety million, thirty-three thousand, three hundred eighty-eight".