90410438 has 4 divisors (see below), whose sum is σ = 135615660. Its totient is φ = 45205218.

The previous prime is 90410431. The next prime is 90410443. The reversal of 90410438 is 83401409.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90410438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90410431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22602608 + ... + 22602611.

It is an arithmetic number, because the mean of its divisors is an integer number (33903915).

Almost surely, 2^90410438 is an apocalyptic number.

90410438 is a deficient number, since it is larger than the sum of its proper divisors (45205222).

90410438 is a wasteful number, since it uses less digits than its factorization.

90410438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45205221.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 90410438 is about 9508.4403558102. The cubic root of 90410438 is about 448.8206782891.

The spelling of 90410438 in words is "ninety million, four hundred ten thousand, four hundred thirty-eight".