7440343900 has 72 divisors (see below), whose sum is σ = 17640277200. Its totient is φ = 2701440000.

The previous prime is 7440343873. The next prime is 7440343901. The reversal of 7440343900 is 93430447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440343901) 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, 766276 + ... + 775924.

It is an arithmetic number, because the mean of its divisors is an integer number (245003850).

Almost surely, 2^7440343900 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 7440343900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8820138600).

7440343900 is an abundant number, since it is smaller than the sum of its proper divisors (10199933300).

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

7440343900 is a wasteful number, since it uses less digits than its factorization.

7440343900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10375 (or 10368 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 7440343900 is about 86257.4280859336. The cubic root of 7440343900 is about 1952.2300937977.

The spelling of 7440343900 in words is "seven billion, four hundred forty million, three hundred forty-three thousand, nine hundred".