1516422144 has 44 divisors (see below), whose sum is σ = 4041826064. Its totient is φ = 505473024.

The previous prime is 1516422121. The next prime is 1516422157. The reversal of 1516422144 is 4412246151.

It is a super-2 number, since 2×1516422144² = 4599072237627113472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243742 + ... + 249885.

Almost surely, 2^1516422144 is an apocalyptic number.

It is an amenable number.

1516422144 is an abundant number, since it is smaller than the sum of its proper divisors (2525403920).

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

1516422144 is an equidigital number, since it uses as much as digits as its factorization.

1516422144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493650 (or 493632 counting only the distinct ones).

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

The square root of 1516422144 is about 38941.2653107215. The cubic root of 1516422144 is about 1148.8765699281.

Adding to 1516422144 its reverse (4412246151), we get a palindrome (5928668295).

It can be divided in two parts, 1516 and 422144, that added together give a triangular number (423660 = T₉₂₀).

The spelling of 1516422144 in words is "one billion, five hundred sixteen million, four hundred twenty-two thousand, one hundred forty-four".