40094020 has 12 divisors (see below), whose sum is σ = 84197484. Its totient is φ = 16037600.

The previous prime is 40094011. The next prime is 40094029. The reversal of 40094020 is 2049004.

It is an interprime number because it is at equal distance from previous prime (40094011) and next prime (40094029).

It can be written as a sum of positive squares in 2 ways, for example, as 20575296 + 19518724 = 4536^2 + 4418^2 .

It is not an unprimeable number, because it can be changed into a prime (40094029) 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 3 ways as a sum of consecutive naturals, for example, 1002331 + ... + 1002370.

It is an arithmetic number, because the mean of its divisors is an integer number (7016457).

Almost surely, 2^40094020 is an apocalyptic number.

It is an amenable number.

40094020 is an abundant number, since it is smaller than the sum of its proper divisors (44103464).

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

40094020 is a wasteful number, since it uses less digits than its factorization.

40094020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004710 (or 2004708 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40094020 is about 6331.9838913251. The cubic root of 40094020 is about 342.2629328985.

It can be divided in two parts, 400940 and 20, that added together give a triangular number (400960 = T₈₉₅).

The spelling of 40094020 in words is "forty million, ninety-four thousand, twenty".