1440213532 has 6 divisors (see below), whose sum is σ = 2520373688. Its totient is φ = 720106764.

The previous prime is 1440213451. The next prime is 1440213553. The reversal of 1440213532 is 2353120441.

It is a junction number, because it is equal to n+sod(n) for n = 1440213497 and 1440213506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180026688 + ... + 180026695.

Almost surely, 2^1440213532 is an apocalyptic number.

It is an amenable number.

1440213532 is a deficient number, since it is larger than the sum of its proper divisors (1080160156).

1440213532 is a wasteful number, since it uses less digits than its factorization.

1440213532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360053387 (or 360053385 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1440213532 is about 37950.1453488653. The cubic root of 1440213532 is about 1129.2990489278.

Adding to 1440213532 its reverse (2353120441), we get a palindrome (3793333973).

The spelling of 1440213532 in words is "one billion, four hundred forty million, two hundred thirteen thousand, five hundred thirty-two".