40013700 has 36 divisors (see below), whose sum is σ = 115773840. Its totient is φ = 10670240.

The previous prime is 40013681. The next prime is 40013711. The reversal of 40013700 is 731004.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 40013700.

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 11 ways as a sum of consecutive naturals, for example, 66390 + ... + 66989.

It is an arithmetic number, because the mean of its divisors is an integer number (3215940).

Almost surely, 2^40013700 is an apocalyptic number.

It is an amenable number.

40013700 is an abundant number, since it is smaller than the sum of its proper divisors (75760140).

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

40013700 is a wasteful number, since it uses less digits than its factorization.

40013700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133396 (or 133389 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 40013700 is about 6325.6383077125. The cubic root of 40013700 is about 342.0342293294.

Adding to 40013700 its reverse (731004), we get a palindrome (40744704).

The spelling of 40013700 in words is "forty million, thirteen thousand, seven hundred".