40028613 has 8 divisors (see below), whose sum is σ = 55212000. Its totient is φ = 25765488.

The previous prime is 40028543. The next prime is 40028617. The reversal of 40028613 is 31682004.

It is a happy number.

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

It is not a de Polignac number, because 40028613 - 2⁸ = 40028357 is a prime.

40028613 is a modest number, since divided by 8613 gives 4002 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40028617) 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, 229963 + ... + 230136.

It is an arithmetic number, because the mean of its divisors is an integer number (6901500).

Almost surely, 2^40028613 is an apocalyptic number.

It is an amenable number.

40028613 is a deficient number, since it is larger than the sum of its proper divisors (15183387).

40028613 is a wasteful number, since it uses less digits than its factorization.

40028613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460131.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 40028613 is about 6326.8169722223. The cubic root of 40028613 is about 342.0767158021.

The spelling of 40028613 in words is "forty million, twenty-eight thousand, six hundred thirteen".