1442403252 has 36 divisors (see below), whose sum is σ = 3647411040. Its totient is φ = 480624912.

The previous prime is 1442403217. The next prime is 1442403253. The reversal of 1442403252 is 2523042441.

1442403252 is a `hidden beast` number, since 1 + 4 + 4 + 2 + 403 + 252 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442403253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124899 + ... + 135957.

Almost surely, 2^1442403252 is an apocalyptic number.

1442403252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1442403252 is an abundant number, since it is smaller than the sum of its proper divisors (2205007788).

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

1442403252 is a wasteful number, since it uses less digits than its factorization.

1442403252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14692 (or 14687 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1442403252 is about 37978.9843466094. The cubic root of 1442403252 is about 1129.8710929257.

Adding to 1442403252 its reverse (2523042441), we get a palindrome (3965445693).

The spelling of 1442403252 in words is "one billion, four hundred forty-two million, four hundred three thousand, two hundred fifty-two".