40045324 has 12 divisors (see below), whose sum is σ = 76450248. Its totient is φ = 18202400.

The previous prime is 40045321. The next prime is 40045381. The reversal of 40045324 is 42354004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 40045295 and 40045304.

It is not an unprimeable number, because it can be changed into a prime (40045321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455017 + ... + 455104.

It is an arithmetic number, because the mean of its divisors is an integer number (6370854).

Almost surely, 2^40045324 is an apocalyptic number.

40045324 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40045324 is a deficient number, since it is larger than the sum of its proper divisors (36404924).

40045324 is a wasteful number, since it uses less digits than its factorization.

40045324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910136 (or 910134 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40045324 is about 6328.1374827037. The cubic root of 40045324 is about 342.1243121609.

Adding to 40045324 its reverse (42354004), we get a palindrome (82399328).

The spelling of 40045324 in words is "forty million, forty-five thousand, three hundred twenty-four".