1516400244 has 24 divisors (see below), whose sum is σ = 3931408320. Its totient is φ = 505466712.

The previous prime is 1516400243. The next prime is 1516400251. The reversal of 1516400244 is 4420046151.

1516400244 is a `hidden beast` number, since 1 + 5 + 16 + 400 + 244 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516400243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7020264 + ... + 7020479.

It is an arithmetic number, because the mean of its divisors is an integer number (163808680).

Almost surely, 2^1516400244 is an apocalyptic number.

It is an amenable number.

1516400244 is an abundant number, since it is smaller than the sum of its proper divisors (2415008076).

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

1516400244 is a wasteful number, since it uses less digits than its factorization.

1516400244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14040756 (or 14040748 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1516400244 is about 38940.9841169943. The cubic root of 1516400244 is about 1148.8710392522.

Adding to 1516400244 its reverse (4420046151), we get a palindrome (5936446395).

The spelling of 1516400244 in words is "one billion, five hundred sixteen million, four hundred thousand, two hundred forty-four".