2231375400 has 144 divisors (see below), whose sum is σ = 7551704160. Its totient is φ = 590428800.

The previous prime is 2231375357. The next prime is 2231375401. The reversal of 2231375400 is 45731322.

2231375400 is a `hidden beast` number, since 223 + 1 + 37 + 5 + 400 = 666.

It is a super-3 number, since 3×2231375400³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231375401) 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, 231069 + ... + 240531.

It is an arithmetic number, because the mean of its divisors is an integer number (52442390).

Almost surely, 2^2231375400 is an apocalyptic number.

2231375400 is a gapful number since it is divisible by the number (20) 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 2231375400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3775852080).

2231375400 is an abundant number, since it is smaller than the sum of its proper divisors (5320328760).

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

2231375400 is a wasteful number, since it uses less digits than its factorization.

2231375400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616 (or 9604 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2231375400 is about 47237.4364249374. The cubic root of 2231375400 is about 1306.7451000515.

The spelling of 2231375400 in words is "two billion, two hundred thirty-one million, three hundred seventy-five thousand, four hundred".