90640414 has 8 divisors (see below), whose sum is σ = 137990088. Its totient is φ = 44643720.

The previous prime is 90640411. The next prime is 90640439. The reversal of 90640414 is 41404609.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90640411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338077 + ... + 338344.

It is an arithmetic number, because the mean of its divisors is an integer number (17248761).

Almost surely, 2^90640414 is an apocalyptic number.

90640414 is a deficient number, since it is larger than the sum of its proper divisors (47349674).

90640414 is a wasteful number, since it uses less digits than its factorization.

90640414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676490.

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

The square root of 90640414 is about 9520.5259308507. The cubic root of 90640414 is about 449.2009094214.

The spelling of 90640414 in words is "ninety million, six hundred forty thousand, four hundred fourteen".