40142013 has 8 divisors (see below), whose sum is σ = 54023328. Its totient is φ = 26511024.

The previous prime is 40141987. The next prime is 40142021. The reversal of 40142013 is 31024104.

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

It is not a de Polignac number, because 40142013 - 2¹² = 40137917 is a prime.

It is a super-2 number, since 2×40142013² = 3222762415384338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40141983 and 40142001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142023) 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, 62206 + ... + 62847.

It is an arithmetic number, because the mean of its divisors is an integer number (6752916).

Almost surely, 2^40142013 is an apocalyptic number.

It is an amenable number.

40142013 is a deficient number, since it is larger than the sum of its proper divisors (13881315).

40142013 is a wasteful number, since it uses less digits than its factorization.

40142013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125163.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 40142013 is about 6335.7724864455. The cubic root of 40142013 is about 342.3994426588.

Adding to 40142013 its reverse (31024104), we get a palindrome (71166117).

The spelling of 40142013 in words is "forty million, one hundred forty-two thousand, thirteen".