40101860 has 24 divisors (see below), whose sum is σ = 84785400. Its totient is φ = 15931904.

The previous prime is 40101839. The next prime is 40101871. The reversal of 40101860 is 6810104.

It can be written as a sum of positive squares in 4 ways, for example, as 8809024 + 31292836 = 2968^2 + 5594^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3749 + ... + 9708.

It is an arithmetic number, because the mean of its divisors is an integer number (3532725).

Almost surely, 2^40101860 is an apocalyptic number.

It is an amenable number.

40101860 is an abundant number, since it is smaller than the sum of its proper divisors (44683540).

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

40101860 is a wasteful number, since it uses less digits than its factorization.

40101860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13615 (or 13613 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 40101860 is about 6332.6029403398. The cubic root of 40101860 is about 342.2852401862.

Adding to 40101860 its reverse (6810104), we get a palindrome (46911964).

The spelling of 40101860 in words is "forty million, one hundred one thousand, eight hundred sixty".