40290276638 has 8 divisors (see below), whose sum is σ = 60436541880. Its totient is φ = 20144762680.

The previous prime is 40290276619. The next prime is 40290276713. The reversal of 40290276638 is 83667209204.

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

It is a junction number, because it is equal to n+sod(n) for n = 40290276592 and 40290276601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25793 + ... + 285036.

It is an arithmetic number, because the mean of its divisors is an integer number (7554567735).

Almost surely, 2^40290276638 is an apocalyptic number.

40290276638 is a deficient number, since it is larger than the sum of its proper divisors (20146265242).

40290276638 is a wasteful number, since it uses less digits than its factorization.

40290276638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375642.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 40290276638 in words is "forty billion, two hundred ninety million, two hundred seventy-six thousand, six hundred thirty-eight".