40838764440 has 32 divisors (see below), whose sum is σ = 122516293680. Its totient is φ = 10890337152.

The previous prime is 40838764429. The next prime is 40838764451. The reversal of 40838764440 is 4446783804.

It is an interprime number because it is at equal distance from previous prime (40838764429) and next prime (40838764451).

It is a super-3 number, since 3×40838764440³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40838764440.

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, 170161399 + ... + 170161638.

Almost surely, 2^40838764440 is an apocalyptic number.

40838764440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40838764440 is an abundant number, since it is smaller than the sum of its proper divisors (81677529240).

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

40838764440 is a wasteful number, since it uses less digits than its factorization.

40838764440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340323051 (or 340323047 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 48.

The spelling of 40838764440 in words is "forty billion, eight hundred thirty-eight million, seven hundred sixty-four thousand, four hundred forty".