40267810428 has 24 divisors (see below), whose sum is σ = 95957336832. Its totient is φ = 13137015984.

The previous prime is 40267810343. The next prime is 40267810447. The reversal of 40267810428 is 82401876204.

It is a self number, because there is not a number n which added to its sum of digits gives 40267810428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35697850 + ... + 35698977.

It is an arithmetic number, because the mean of its divisors is an integer number (3998222368).

Almost surely, 2^40267810428 is an apocalyptic number.

It is an amenable number.

40267810428 is an abundant number, since it is smaller than the sum of its proper divisors (55689526404).

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

40267810428 is a wasteful number, since it uses less digits than its factorization.

40267810428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71396881 (or 71396879 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 40267810428 in words is "forty billion, two hundred sixty-seven million, eight hundred ten thousand, four hundred twenty-eight".