40072324 has 12 divisors (see below), whose sum is σ = 70770700. Its totient is φ = 19852128.

The previous prime is 40072309. The next prime is 40072327. The reversal of 40072324 is 42327004.

It can be written as a sum of positive squares in 2 ways, for example, as 36000000 + 4072324 = 6000^2 + 2018^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40072295 and 40072304.

It is not an unprimeable number, because it can be changed into a prime (40072327) 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, 45519 + ... + 46390.

Almost surely, 2^40072324 is an apocalyptic number.

It is an amenable number.

40072324 is a deficient number, since it is larger than the sum of its proper divisors (30698376).

40072324 is a wasteful number, since it uses less digits than its factorization.

40072324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92022 (or 92020 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 40072324 is about 6330.2704523583. The cubic root of 40072324 is about 342.2011857318.

Adding to 40072324 its reverse (42327004), we get a palindrome (82399328).

The spelling of 40072324 in words is "forty million, seventy-two thousand, three hundred twenty-four".