2151430224 has 40 divisors (see below), whose sum is σ = 5563959360. Its totient is φ = 716356608.

The previous prime is 2151430199. The next prime is 2151430271. The reversal of 2151430224 is 4220341512.

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

It is a junction number, because it is equal to n+sod(n) for n = 2151430194 and 2151430203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20469 + ... + 68715.

It is an arithmetic number, because the mean of its divisors is an integer number (139098984).

Almost surely, 2^2151430224 is an apocalyptic number.

2151430224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2151430224 is an abundant number, since it is smaller than the sum of its proper divisors (3412529136).

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

2151430224 is a wasteful number, since it uses less digits than its factorization.

2151430224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49187 (or 49181 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2151430224 is about 46383.5124155125. The cubic root of 2151430224 is about 1290.9490090245.

Adding to 2151430224 its reverse (4220341512), we get a palindrome (6371771736).

The spelling of 2151430224 in words is "two billion, one hundred fifty-one million, four hundred thirty thousand, two hundred twenty-four".