90209414 has 4 divisors (see below), whose sum is σ = 135314124. Its totient is φ = 45104706.

The previous prime is 90209393. The next prime is 90209447. The reversal of 90209414 is 41490209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41490209 = 37 ⋅1121357.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22552352 + ... + 22552355.

It is an arithmetic number, because the mean of its divisors is an integer number (33828531).

Almost surely, 2^90209414 is an apocalyptic number.

90209414 is a deficient number, since it is larger than the sum of its proper divisors (45104710).

90209414 is a wasteful number, since it uses less digits than its factorization.

90209414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45104709.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 90209414 is about 9497.8636545278. The cubic root of 90209414 is about 448.4877864889.

The spelling of 90209414 in words is "ninety million, two hundred nine thousand, four hundred fourteen".