40013061 has 8 divisors (see below), whose sum is σ = 58200864. Its totient is φ = 24250320.

The previous prime is 40013041. The next prime is 40013081. The reversal of 40013061 is 16031004.

It is an interprime number because it is at equal distance from previous prime (40013041) and next prime (40013081).

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

It is not a de Polignac number, because 40013061 - 2¹⁸ = 39750917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40013061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013041) 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, 606226 + ... + 606291.

It is an arithmetic number, because the mean of its divisors is an integer number (7275108).

Almost surely, 2^40013061 is an apocalyptic number.

It is an amenable number.

40013061 is a deficient number, since it is larger than the sum of its proper divisors (18187803).

40013061 is a wasteful number, since it uses less digits than its factorization.

40013061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212531.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 40013061 is about 6325.5877987741. The cubic root of 40013061 is about 342.0324086110.

Adding to 40013061 its reverse (16031004), we get a palindrome (56044065).

The spelling of 40013061 in words is "forty million, thirteen thousand, sixty-one".