40142015 has 16 divisors (see below), whose sum is σ = 53224128. Its totient is φ = 28909056.

The previous prime is 40141987. The next prime is 40142021. The reversal of 40142015 is 51024104.

40142015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40142015 - 2¹² = 40137919 is a prime.

It is a super-2 number, since 2×40142015² = 3222762736520450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40141984 and 40142002.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8312 + ... + 12221.

It is an arithmetic number, because the mean of its divisors is an integer number (3326508).

Almost surely, 2^40142015 is an apocalyptic number.

40142015 is a deficient number, since it is larger than the sum of its proper divisors (13082113).

40142015 is a wasteful number, since it uses less digits than its factorization.

40142015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20578.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 40142015 is about 6335.7726442795. The cubic root of 40142015 is about 342.3994483452.

Adding to 40142015 its reverse (51024104), we get a palindrome (91166119).

The spelling of 40142015 in words is "forty million, one hundred forty-two thousand, fifteen".