1444216252 has 12 divisors (see below), whose sum is σ = 2530253376. Its totient is φ = 721286720.

The previous prime is 1444216247. The next prime is 1444216307. The reversal of 1444216252 is 2526124441.

It is a congruent number.

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, 201388 + ... + 208435.

It is an arithmetic number, because the mean of its divisors is an integer number (210854448).

Almost surely, 2^1444216252 is an apocalyptic number.

It is an amenable number.

1444216252 is a deficient number, since it is larger than the sum of its proper divisors (1086037124).

1444216252 is a wasteful number, since it uses less digits than its factorization.

1444216252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410708 (or 410706 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 1444216252 is about 38002.8453145288. The cubic root of 1444216252 is about 1130.3442843701.

The spelling of 1444216252 in words is "one billion, four hundred forty-four million, two hundred sixteen thousand, two hundred fifty-two".