40498579 has 6 divisors (see below), whose sum is σ = 44515100. Its totient is φ = 36816780.

The previous prime is 40498559. The next prime is 40498583. The reversal of 40498579 is 97589404.

It is not a de Polignac number, because 40498579 - 2²³ = 32109971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40498559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167229 + ... + 167470.

Almost surely, 2^40498579 is an apocalyptic number.

40498579 is a deficient number, since it is larger than the sum of its proper divisors (4016521).

40498579 is a wasteful number, since it uses less digits than its factorization.

40498579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334721 (or 334710 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 40498579 is about 6363.8493853956. The cubic root of 40498579 is about 343.4102563266.

The spelling of 40498579 in words is "forty million, four hundred ninety-eight thousand, five hundred seventy-nine".