43720242810 has 32 divisors (see below), whose sum is σ = 105202575360. Its totient is φ = 11628287808.

The previous prime is 43720242781. The next prime is 43720242817. The reversal of 43720242810 is 1824202734.

It is a happy number.

It is a super-2 number, since 2×43720242810² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43720242817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1891045 + ... + 1914024.

It is an arithmetic number, because the mean of its divisors is an integer number (3287580480).

Almost surely, 2^43720242810 is an apocalyptic number.

43720242810 is an abundant number, since it is smaller than the sum of its proper divisors (61482332550).

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

43720242810 is a wasteful number, since it uses less digits than its factorization.

43720242810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805462.

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 43720242810 in words is "forty-three billion, seven hundred twenty million, two hundred forty-two thousand, eight hundred ten".