40598198 has 4 divisors (see below), whose sum is σ = 60897300. Its totient is φ = 20299098.

The previous prime is 40598191. The next prime is 40598209. The reversal of 40598198 is 89189504.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40598191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10149548 + ... + 10149551.

It is an arithmetic number, because the mean of its divisors is an integer number (15224325).

Almost surely, 2^40598198 is an apocalyptic number.

40598198 is a deficient number, since it is larger than the sum of its proper divisors (20299102).

40598198 is a wasteful number, since it uses less digits than its factorization.

40598198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20299101.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 40598198 is about 6371.6715232347. The cubic root of 40598198 is about 343.6916009663.

The spelling of 40598198 in words is "forty million, five hundred ninety-eight thousand, one hundred ninety-eight".