40328740 has 24 divisors (see below), whose sum is σ = 84970872. Its totient is φ = 16078080.

The previous prime is 40328713. The next prime is 40328767. The reversal of 40328740 is 4782304.

40328740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40328713) and next prime (40328767).

It can be written as a sum of positive squares in 4 ways, for example, as 285156 + 40043584 = 534^2 + 6328^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40328699 and 40328708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3160 + ... + 9520.

It is an arithmetic number, because the mean of its divisors is an integer number (3540453).

Almost surely, 2^40328740 is an apocalyptic number.

It is an amenable number.

40328740 is an abundant number, since it is smaller than the sum of its proper divisors (44642132).

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

40328740 is a wasteful number, since it uses less digits than its factorization.

40328740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687 (or 6685 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 40328740 is about 6350.4913195752. The cubic root of 40328740 is about 342.9295301854.

The spelling of 40328740 in words is "forty million, three hundred twenty-eight thousand, seven hundred forty".