40501333998 has 24 divisors (see below), whose sum is σ = 87784328736. Its totient is φ = 13495608000.

The previous prime is 40501333993. The next prime is 40501334009. The reversal of 40501333998 is 89933310504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40501333993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351238 + ... + 452073.

It is an arithmetic number, because the mean of its divisors is an integer number (3657680364).

Almost surely, 2^40501333998 is an apocalyptic number.

40501333998 is an abundant number, since it is smaller than the sum of its proper divisors (47282994738).

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

40501333998 is a wasteful number, since it uses less digits than its factorization.

40501333998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806120 (or 806117 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 40501333998 in words is "forty billion, five hundred one million, three hundred thirty-three thousand, nine hundred ninety-eight".