90338954 has 4 divisors (see below), whose sum is σ = 135508434. Its totient is φ = 45169476.

The previous prime is 90338953. The next prime is 90338957. The reversal of 90338954 is 45983309.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72505225 + 17833729 = 8515^2 + 4223^2 .

It is a super-2 number, since 2×90338954² = 16322253219628232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90338951) by changing a digit.

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 as a sum of consecutive naturals, namely, 22584737 + ... + 22584740.

Almost surely, 2^90338954 is an apocalyptic number.

90338954 is a deficient number, since it is larger than the sum of its proper divisors (45169480).

90338954 is a wasteful number, since it uses less digits than its factorization.

90338954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45169479.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 90338954 is about 9504.6806364023. The cubic root of 90338954 is about 448.7023587767.

The spelling of 90338954 in words is "ninety million, three hundred thirty-eight thousand, nine hundred fifty-four".