40281299 has 4 divisors (see below), whose sum is σ = 40450080. Its totient is φ = 40112520.

The previous prime is 40281281. The next prime is 40281301. The reversal of 40281299 is 99218204.

40281299 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 is a cyclic number.

It is not a de Polignac number, because 40281299 - 2²⁰ = 39232723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40281599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84032 + ... + 84509.

It is an arithmetic number, because the mean of its divisors is an integer number (10112520).

Almost surely, 2^40281299 is an apocalyptic number.

40281299 is a deficient number, since it is larger than the sum of its proper divisors (168781).

40281299 is a wasteful number, since it uses less digits than its factorization.

40281299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168780.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 40281299 is about 6346.7549976346. The cubic root of 40281299 is about 342.7950082260.

The spelling of 40281299 in words is "forty million, two hundred eighty-one thousand, two hundred ninety-nine".