40146724 has 18 divisors (see below), whose sum is σ = 74634770. Its totient is φ = 18892032.

The previous prime is 40146719. The next prime is 40146731. The reversal of 40146724 is 42764104.

It can be written as a sum of positive squares in 3 ways, for example, as 4981824 + 35164900 = 2232^2 + 5930^2 .

It is a super-2 number, since 2×40146724² = 3223518895864352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40146692 and 40146701.

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 5 ways as a sum of consecutive naturals, for example, 16209 + ... + 18520.

Almost surely, 2^40146724 is an apocalyptic number.

It is an amenable number.

40146724 is a deficient number, since it is larger than the sum of its proper divisors (34488046).

40146724 is a wasteful number, since it uses less digits than its factorization.

40146724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34767 (or 34748 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 40146724 is about 6336.1442534084. The cubic root of 40146724 is about 342.4128366115.

The spelling of 40146724 in words is "forty million, one hundred forty-six thousand, seven hundred twenty-four".