40095720 has 144 divisors (see below), whose sum is σ = 151653060. Its totient is φ = 9160704.

The previous prime is 40095709. The next prime is 40095721. The reversal of 40095720 is 2759004.

It can be written as a sum of positive squares in 2 ways, for example, as 39162564 + 933156 = 6258^2 + 966^2 .

It is not an unprimeable number, because it can be changed into a prime (40095721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16504 + ... + 18776.

Almost surely, 2^40095720 is an apocalyptic number.

40095720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40095720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75826530).

40095720 is an abundant number, since it is smaller than the sum of its proper divisors (111557340).

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

40095720 is a wasteful number, since it uses less digits than its factorization.

40095720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 40095720 is about 6332.1181290308. The cubic root of 40095720 is about 342.2677701849.

The spelling of 40095720 in words is "forty million, ninety-five thousand, seven hundred twenty".