90378058 has 8 divisors (see below), whose sum is σ = 135638820. Its totient is φ = 45165120.

The previous prime is 90378047. The next prime is 90378073. The reversal of 90378058 is 85087309.

It can be written as a sum of positive squares in 2 ways, for example, as 63473089 + 26904969 = 7967^2 + 5187^2 .

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

It is a super-3 number, since 3×90378058³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90378058.

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 3 ways as a sum of consecutive naturals, for example, 6783 + ... + 15058.

Almost surely, 2^90378058 is an apocalyptic number.

90378058 is a deficient number, since it is larger than the sum of its proper divisors (45260762).

90378058 is a wasteful number, since it uses less digits than its factorization.

90378058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23912.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 90378058 is about 9506.7375055799. The cubic root of 90378058 is about 448.7670910073.

It can be divided in two parts, 903 and 78058, that added together give a square (78961 = 281²).

The spelling of 90378058 in words is "ninety million, three hundred seventy-eight thousand, fifty-eight".