40305456 has 60 divisors (see below), whose sum is σ = 116450880. Its totient is φ = 13000320.

The previous prime is 40305449. The next prime is 40305481. The reversal of 40305456 is 65450304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51 + ... + 8978.

It is an arithmetic number, because the mean of its divisors is an integer number (1940848).

Almost surely, 2^40305456 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 40305456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58225440).

40305456 is an abundant number, since it is smaller than the sum of its proper divisors (76145424).

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

40305456 is a wasteful number, since it uses less digits than its factorization.

40305456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9074 (or 9065 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40305456 is about 6348.6578109078. The cubic root of 40305456 is about 342.8635201195.

The spelling of 40305456 in words is "forty million, three hundred five thousand, four hundred fifty-six".