40498 has 4 divisors (see below), whose sum is σ = 60750. Its totient is φ = 20248.

The previous prime is 40493. The next prime is 40499. The reversal of 40498 is 89404.

40498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 37249 + 3249 = 193^2 + 57^2 .

It is not an unprimeable number, because it can be changed into a prime (40493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123 + ... + 10126.

2⁴⁰⁴⁹⁸ is an apocalyptic number.

40498 is a deficient number, since it is larger than the sum of its proper divisors (20252).

40498 is a wasteful number, since it uses less digits than its factorization.

40498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20251.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 40498 is about 201.2411488737. The cubic root of 40498 is about 34.3408619763.

The spelling of 40498 in words is "forty thousand, four hundred ninety-eight".