40142465 has 32 divisors (see below), whose sum is σ = 54867456. Its totient is φ = 27938560.

The previous prime is 40142449. The next prime is 40142483. The reversal of 40142465 is 56424104.

It is not a de Polignac number, because 40142465 - 2⁴ = 40142449 is a prime.

It is a super-3 number, since 3×40142465³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136859 + ... + 137151.

It is an arithmetic number, because the mean of its divisors is an integer number (1714608).

Almost surely, 2^40142465 is an apocalyptic number.

It is an amenable number.

40142465 is a deficient number, since it is larger than the sum of its proper divisors (14724991).

40142465 is a wasteful number, since it uses less digits than its factorization.

40142465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40142465 is about 6335.8081568179. The cubic root of 40142465 is about 342.4007277958.

Adding to 40142465 its reverse (56424104), we get a palindrome (96566569).

The spelling of 40142465 in words is "forty million, one hundred forty-two thousand, four hundred sixty-five".