40533898 has 4 divisors (see below), whose sum is σ = 60800850. Its totient is φ = 20266948.

The previous prime is 40533869. The next prime is 40533901. The reversal of 40533898 is 89833504.

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., 27910089 + 12623809 = 5283^2 + 3553^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 40533898.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133473 + ... + 10133476.

Almost surely, 2^40533898 is an apocalyptic number.

40533898 is a deficient number, since it is larger than the sum of its proper divisors (20266952).

40533898 is a wasteful number, since it uses less digits than its factorization.

40533898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20266951.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 40533898 is about 6366.6237520369. The cubic root of 40533898 is about 343.5100572164.

The spelling of 40533898 in words is "forty million, five hundred thirty-three thousand, eight hundred ninety-eight".