1440206132 has 12 divisors (see below), whose sum is σ = 2521283940. Its totient is φ = 719839296.

The previous prime is 1440206087. The next prime is 1440206171. The reversal of 1440206132 is 2316020441.

It can be written as a sum of positive squares in 2 ways, for example, as 664917796 + 775288336 = 25786^2 + 27844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1440206098 and 1440206107.

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, 53393 + ... + 75704.

It is an arithmetic number, because the mean of its divisors is an integer number (210106995).

Almost surely, 2^1440206132 is an apocalyptic number.

It is an amenable number.

1440206132 is a deficient number, since it is larger than the sum of its proper divisors (1081077808).

1440206132 is a wasteful number, since it uses less digits than its factorization.

1440206132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131890 (or 131888 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1440206132 is about 37950.0478524072. The cubic root of 1440206132 is about 1129.2971147638.

Adding to 1440206132 its reverse (2316020441), we get a palindrome (3756226573).

The spelling of 1440206132 in words is "one billion, four hundred forty million, two hundred six thousand, one hundred thirty-two".