40003672 has 16 divisors (see below), whose sum is σ = 76064400. Its totient is φ = 19719840.

The previous prime is 40003651. The next prime is 40003679. The reversal of 40003672 is 27630004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40003679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34647 + ... + 35782.

It is an arithmetic number, because the mean of its divisors is an integer number (4754025).

Almost surely, 2^40003672 is an apocalyptic number.

It is an amenable number.

40003672 is a deficient number, since it is larger than the sum of its proper divisors (36060728).

40003672 is a wasteful number, since it uses less digits than its factorization.

40003672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70506 (or 70502 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 40003672 is about 6324.8456107639. The cubic root of 40003672 is about 342.0056540679.

Adding to 40003672 its reverse (27630004), we get a palindrome (67633676).

The spelling of 40003672 in words is "forty million, three thousand, six hundred seventy-two".