40229279 has 8 divisors (see below), whose sum is σ = 41603760. Its totient is φ = 38877696.

The previous prime is 40229263. The next prime is 40229291. The reversal of 40229279 is 97292204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40229279 - 2⁴ = 40229263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40229179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2114 + ... + 9215.

It is an arithmetic number, because the mean of its divisors is an integer number (5200470).

Almost surely, 2^40229279 is an apocalyptic number.

40229279 is a deficient number, since it is larger than the sum of its proper divisors (1374481).

40229279 is a wasteful number, since it uses less digits than its factorization.

40229279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11449.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 40229279 is about 6342.6555164221. The cubic root of 40229279 is about 342.6473807616.

The spelling of 40229279 in words is "forty million, two hundred twenty-nine thousand, two hundred seventy-nine".