40380912 has 240 divisors, whose sum is σ = 138928608. Its totient is φ = 10782720.

The previous prime is 40380883. The next prime is 40380917. The reversal of 40380912 is 21908304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40380917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 761878 + ... + 761930.

Almost surely, 2^40380912 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 40380912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69464304).

40380912 is an abundant number, since it is smaller than the sum of its proper divisors (98547696).

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

40380912 is a wasteful number, since it uses less digits than its factorization.

40380912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40380912 is about 6354.5977055987. The cubic root of 40380912 is about 343.0773454477.

The spelling of 40380912 in words is "forty million, three hundred eighty thousand, nine hundred twelve".