40076240 has 20 divisors (see below), whose sum is σ = 93177444. Its totient is φ = 16030464.

The previous prime is 40076227. The next prime is 40076287. The reversal of 40076240 is 4267004.

It can be written as a sum of positive squares in 2 ways, for example, as 6990736 + 33085504 = 2644^2 + 5752^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×40076240² = 3212210025075200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 250397 + ... + 250556.

Almost surely, 2^40076240 is an apocalyptic number.

40076240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40076240 is an abundant number, since it is smaller than the sum of its proper divisors (53101204).

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

40076240 is a wasteful number, since it uses less digits than its factorization.

40076240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500966 (or 500960 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 40076240 is about 6330.5797522818. The cubic root of 40076240 is about 342.2123323791.

The spelling of 40076240 in words is "forty million, seventy-six thousand, two hundred forty".