90242038 has 8 divisors (see below), whose sum is σ = 139021632. Its totient is φ = 43901496.

The previous prime is 90242029. The next prime is 90242057. The reversal of 90242038 is 83024209.

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

It is a junction number, because it is equal to n+sod(n) for n = 90241997 and 90242015.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 609670 + ... + 609817.

It is an arithmetic number, because the mean of its divisors is an integer number (17377704).

Almost surely, 2^90242038 is an apocalyptic number.

90242038 is a deficient number, since it is larger than the sum of its proper divisors (48779594).

90242038 is a wasteful number, since it uses less digits than its factorization.

90242038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219526.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 90242038 is about 9499.5809381256. The cubic root of 90242038 is about 448.5418447867.

The spelling of 90242038 in words is "ninety million, two hundred forty-two thousand, thirty-eight".