72043145400 has 96 divisors (see below), whose sum is σ = 223761749760. Its totient is φ = 19174688640.

The previous prime is 72043145393. The next prime is 72043145401. The reversal of 72043145400 is 454134027.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72043145401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199009 + ... + 428591.

It is an arithmetic number, because the mean of its divisors is an integer number (2330851560).

Almost surely, 2^72043145400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72043145400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111880874880).

72043145400 is an abundant number, since it is smaller than the sum of its proper divisors (151718604360).

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

72043145400 is a wasteful number, since it uses less digits than its factorization.

72043145400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230125 (or 230116 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

Adding to 72043145400 its reverse (454134027), we get a palindrome (72497279427).

The spelling of 72043145400 in words is "seventy-two billion, forty-three million, one hundred forty-five thousand, four hundred".