40433311380 has 576 divisors, whose sum is σ = 157861509120. Its totient is φ = 7610803200.

The previous prime is 40433311339. The next prime is 40433311409. The reversal of 40433311380 is 8311333404.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14131150 + ... + 14134010.

It is an arithmetic number, because the mean of its divisors is an integer number (274065120).

Almost surely, 2^40433311380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40433311380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78930754560).

40433311380 is an abundant number, since it is smaller than the sum of its proper divisors (117428197740).

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

40433311380 is a wasteful number, since it uses less digits than its factorization.

40433311380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940 (or 2931 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 40433311380 its reverse (8311333404), we get a palindrome (48744644784).

The spelling of 40433311380 in words is "forty billion, four hundred thirty-three million, three hundred eleven thousand, three hundred eighty".