40180732 has 6 divisors (see below), whose sum is σ = 70316288. Its totient is φ = 20090364.

The previous prime is 40180727. The next prime is 40180757. The reversal of 40180732 is 23708104.

It is a super-2 number, since 2×40180732² = 3228982448111648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40180697 and 40180706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5022588 + ... + 5022595.

Almost surely, 2^40180732 is an apocalyptic number.

It is an amenable number.

40180732 is a deficient number, since it is larger than the sum of its proper divisors (30135556).

40180732 is a wasteful number, since it uses less digits than its factorization.

40180732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10045187 (or 10045185 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40180732 is about 6338.8273363454. The cubic root of 40180732 is about 342.5094944710.

Adding to 40180732 its reverse (23708104), we get a palindrome (63888836).

The spelling of 40180732 in words is "forty million, one hundred eighty thousand, seven hundred thirty-two".