40235021436 has 48 divisors (see below), whose sum is σ = 95571432320. Its totient is φ = 13171498560.

The previous prime is 40235021429. The next prime is 40235021441. The reversal of 40235021436 is 63412053204.

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 15 ways as a sum of consecutive naturals, for example, 190530 + ... + 341718.

Almost surely, 2^40235021436 is an apocalyptic number.

It is an amenable number.

40235021436 is an abundant number, since it is smaller than the sum of its proper divisors (55336410884).

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

40235021436 is a wasteful number, since it uses less digits than its factorization.

40235021436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151594 (or 151592 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 40235021436 in words is "forty billion, two hundred thirty-five million, twenty-one thousand, four hundred thirty-six".