1516144422 has 64 divisors (see below), whose sum is σ = 3473426880. Its totient is φ = 437059584.

The previous prime is 1516144411. The next prime is 1516144423. The reversal of 1516144422 is 2244416151.

It is a self number, because there is not a number n which added to its sum of digits gives 1516144422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516144423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301158 + ... + 306150.

It is an arithmetic number, because the mean of its divisors is an integer number (54272295).

Almost surely, 2^1516144422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1516144422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1736713440).

1516144422 is an abundant number, since it is smaller than the sum of its proper divisors (1957282458).

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

1516144422 is a wasteful number, since it uses less digits than its factorization.

1516144422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257.

The product of its digits is 7680, while the sum is 30.

The square root of 1516144422 is about 38937.6992386556. The cubic root of 1516144422 is about 1148.8064294376.

The spelling of 1516144422 in words is "one billion, five hundred sixteen million, one hundred forty-four thousand, four hundred twenty-two".