40113072 has 30 divisors (see below), whose sum is σ = 112261292. Its totient is φ = 13370976.

The previous prime is 40113053. The next prime is 40113131. The reversal of 40113072 is 27031104.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139138 + ... + 139425.

Almost surely, 2^40113072 is an apocalyptic number.

It is an amenable number.

40113072 is an abundant number, since it is smaller than the sum of its proper divisors (72148220).

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

40113072 is a wasteful number, since it uses less digits than its factorization.

40113072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278577 (or 278568 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 40113072 is about 6333.4881384589. The cubic root of 40113072 is about 342.3171368323.

Adding to 40113072 its reverse (27031104), we get a palindrome (67144176).

The spelling of 40113072 in words is "forty million, one hundred thirteen thousand, seventy-two".