40679143 has 8 divisors (see below), whose sum is σ = 42152400. Its totient is φ = 39232128.

The previous prime is 40679137. The next prime is 40679167. The reversal of 40679143 is 34197604.

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 40679143 - 2¹³ = 40670951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40679099 and 40679108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40679173) 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, 3378 + ... + 9631.

It is an arithmetic number, because the mean of its divisors is an integer number (5269050).

Almost surely, 2^40679143 is an apocalyptic number.

40679143 is a deficient number, since it is larger than the sum of its proper divisors (1473257).

40679143 is a wasteful number, since it uses less digits than its factorization.

40679143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13121.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 40679143 is about 6378.0203041383. The cubic root of 40679143 is about 343.9198676476.

The spelling of 40679143 in words is "forty million, six hundred seventy-nine thousand, one hundred forty-three".