1401204132 has 18 divisors (see below), whose sum is σ = 3541932758. Its totient is φ = 467068032.

The previous prime is 1401204131. The next prime is 1401204139. The reversal of 1401204132 is 2314021041.

It can be written as a sum of positive squares in only one way, i.e., 872847936 + 528356196 = 29544^2 + 22986^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1401204131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19461133 + ... + 19461204.

Almost surely, 2^1401204132 is an apocalyptic number.

1401204132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1401204132 is an abundant number, since it is smaller than the sum of its proper divisors (2140728626).

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

1401204132 is a wasteful number, since it uses less digits than its factorization.

1401204132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38922347 (or 38922342 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1401204132 is about 37432.6612999931. The cubic root of 1401204132 is about 1119.0095761626.

Adding to 1401204132 its reverse (2314021041), we get a palindrome (3715225173).

The spelling of 1401204132 in words is "one billion, four hundred one million, two hundred four thousand, one hundred thirty-two".