99190394 has 4 divisors (see below), whose sum is σ = 148785594. Its totient is φ = 49595196.

The previous prime is 99190381. The next prime is 99190397. The reversal of 99190394 is 49309199.

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., 55696369 + 43494025 = 7463^2 + 6595^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99190397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24797597 + ... + 24797600.

Almost surely, 2^99190394 is an apocalyptic number.

99190394 is a deficient number, since it is larger than the sum of its proper divisors (49595200).

99190394 is a wasteful number, since it uses less digits than its factorization.

99190394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49595199.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 99190394 is about 9959.4374339116. The cubic root of 99190394 is about 462.9028682572.

The spelling of 99190394 in words is "ninety-nine million, one hundred ninety thousand, three hundred ninety-four".