40433998 has 16 divisors (see below), whose sum is σ = 67288320. Its totient is φ = 18067000.

The previous prime is 40433983. The next prime is 40434001. The reversal of 40433998 is 89933404.

It is a self number, because there is not a number n which added to its sum of digits gives 40433998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14278 + ... + 16873.

It is an arithmetic number, because the mean of its divisors is an integer number (4205520).

Almost surely, 2^40433998 is an apocalyptic number.

40433998 is a deficient number, since it is larger than the sum of its proper divisors (26854322).

40433998 is a wasteful number, since it uses less digits than its factorization.

40433998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31223.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 40433998 is about 6358.7733093734. The cubic root of 40433998 is about 343.2276196567.

The spelling of 40433998 in words is "forty million, four hundred thirty-three thousand, nine hundred ninety-eight".