40145740635 has 128 divisors (see below), whose sum is σ = 91316865024. Its totient is φ = 14494556160.

The previous prime is 40145740627. The next prime is 40145740673. The reversal of 40145740635 is 53604754104.

It is a happy number.

It is not a de Polignac number, because 40145740635 - 2³ = 40145740627 is a prime.

It is a super-2 number, since 2×40145740635² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 40145740593 and 40145740602.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 176617 + ... + 333893.

It is an arithmetic number, because the mean of its divisors is an integer number (713413008).

Almost surely, 2^40145740635 is an apocalyptic number.

40145740635 is an abundant number, since it is smaller than the sum of its proper divisors (51171124389).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40145740635 is a wasteful number, since it uses less digits than its factorization.

40145740635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157333.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 40145740635 in words is "forty billion, one hundred forty-five million, seven hundred forty thousand, six hundred thirty-five".