40247132 has 12 divisors (see below), whose sum is σ = 70661136. Its totient is φ = 20058240.

The previous prime is 40247113. The next prime is 40247159. The reversal of 40247132 is 23174204.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40247098 and 40247107.

It is a congruent number.

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, 14933 + ... + 17420.

It is an arithmetic number, because the mean of its divisors is an integer number (5888428).

Almost surely, 2^40247132 is an apocalyptic number.

It is an amenable number.

40247132 is a deficient number, since it is larger than the sum of its proper divisors (30414004).

40247132 is a wasteful number, since it uses less digits than its factorization.

40247132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32668 (or 32666 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 40247132 is about 6344.0627361337. The cubic root of 40247132 is about 342.6980600939.

The spelling of 40247132 in words is "forty million, two hundred forty-seven thousand, one hundred thirty-two".