40325778 has 12 divisors (see below), whose sum is σ = 87372558. Its totient is φ = 13441920.

The previous prime is 40325777. The next prime is 40325783. The reversal of 40325778 is 87752304.

It can be written as a sum of positive squares in only one way, i.e., 40030929 + 294849 = 6327^2 + 543^2 .

It is not an unprimeable number, because it can be changed into a prime (40325773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1120143 + ... + 1120178.

Almost surely, 2^40325778 is an apocalyptic number.

40325778 is an abundant number, since it is smaller than the sum of its proper divisors (47046780).

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

40325778 is a wasteful number, since it uses less digits than its factorization.

40325778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240329 (or 2240326 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 40325778 is about 6350.2581049907. The cubic root of 40325778 is about 342.9211343355.

The spelling of 40325778 in words is "forty million, three hundred twenty-five thousand, seven hundred seventy-eight".