40229613 has 12 divisors (see below), whose sum is σ = 58686108. Its totient is φ = 26553600.

The previous prime is 40229573. The next prime is 40229617. The reversal of 40229613 is 31692204.

40229613 is a `hidden beast` number, since 40 + 2 + 2 + 9 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 1814409 = 6198^2 + 1347^2 .

It is not a de Polignac number, because 40229613 - 2⁶ = 40229549 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40229617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21220 + ... + 23037.

It is an arithmetic number, because the mean of its divisors is an integer number (4890509).

Almost surely, 2^40229613 is an apocalyptic number.

It is an amenable number.

40229613 is a deficient number, since it is larger than the sum of its proper divisors (18456495).

40229613 is a wasteful number, since it uses less digits than its factorization.

40229613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44364 (or 44361 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40229613 is about 6342.6818460333. The cubic root of 40229613 is about 342.6483290254.

The spelling of 40229613 in words is "forty million, two hundred twenty-nine thousand, six hundred thirteen".