40509224 has 16 divisors (see below), whose sum is σ = 86805600. Its totient is φ = 17361072.

The previous prime is 40509211. The next prime is 40509247. The reversal of 40509224 is 42290504.

It is a junction number, because it is equal to n+sod(n) for n = 40509193 and 40509202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361634 + ... + 361745.

It is an arithmetic number, because the mean of its divisors is an integer number (5425350).

Almost surely, 2^40509224 is an apocalyptic number.

It is an amenable number.

40509224 is an abundant number, since it is smaller than the sum of its proper divisors (46296376).

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

40509224 is a wasteful number, since it uses less digits than its factorization.

40509224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723392 (or 723388 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40509224 is about 6364.6856953034. The cubic root of 40509224 is about 343.4403420072.

Adding to 40509224 its reverse (42290504), we get a palindrome (82799728).

The spelling of 40509224 in words is "forty million, five hundred nine thousand, two hundred twenty-four".