40279085 has 24 divisors (see below), whose sum is σ = 60724608. Its totient is φ = 25106400.

The previous prime is 40279061. The next prime is 40279087. The reversal of 40279085 is 58097204.

It is a happy number.

40279085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40279085 - 2¹⁶ = 40213549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40279087) 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 23 ways as a sum of consecutive naturals, for example, 521 + ... + 8990.

It is an arithmetic number, because the mean of its divisors is an integer number (2530192).

Almost surely, 2^40279085 is an apocalyptic number.

It is an amenable number.

40279085 is a deficient number, since it is larger than the sum of its proper divisors (20445523).

40279085 is a wasteful number, since it uses less digits than its factorization.

40279085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9545 (or 9534 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 40279085 is about 6346.5805753965. The cubic root of 40279085 is about 342.7887277098.

The spelling of 40279085 in words is "forty million, two hundred seventy-nine thousand, eighty-five".