40236943968 has 192 divisors, whose sum is σ = 126861235200. Its totient is φ = 12333980160.

The previous prime is 40236943933. The next prime is 40236943979. The reversal of 40236943968 is 86934963204.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3037263 + ... + 3050481.

It is an arithmetic number, because the mean of its divisors is an integer number (660735600).

Almost surely, 2^40236943968 is an apocalyptic number.

40236943968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40236943968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63430617600).

40236943968 is an abundant number, since it is smaller than the sum of its proper divisors (86624291232).

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

40236943968 is a wasteful number, since it uses less digits than its factorization.

40236943968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13522 (or 13508 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 40236943968 in words is "forty billion, two hundred thirty-six million, nine hundred forty-three thousand, nine hundred sixty-eight".