31424440200 has 48 divisors (see below), whose sum is σ = 97415766480. Its totient is φ = 8379850560.

The previous prime is 31424440169. The next prime is 31424440241. The reversal of 31424440200 is 204442413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26186434 + ... + 26187633.

It is an arithmetic number, because the mean of its divisors is an integer number (2029495135).

Almost surely, 2^31424440200 is an apocalyptic number.

31424440200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31424440200 is an abundant number, since it is smaller than the sum of its proper divisors (65991326280).

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

31424440200 is a wasteful number, since it uses less digits than its factorization.

31424440200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52374086 (or 52374077 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 31424440200 its reverse (204442413), we get a palindrome (31628882613).

The spelling of 31424440200 in words is "thirty-one billion, four hundred twenty-four million, four hundred forty thousand, two hundred".