1421532 has 36 divisors (see below), whose sum is σ = 4107376. Its totient is φ = 406080.

The previous prime is 1421527. The next prime is 1421543. The reversal of 1421532 is 2351241.

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

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2569 + ... + 3072.

2^1421532 is an apocalyptic number.

1421532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421532 is an abundant number, since it is smaller than the sum of its proper divisors (2685844).

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

1421532 is a wasteful number, since it uses less digits than its factorization.

1421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658 (or 5653 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1421532 is about 1192.2801684168. The cubic root of 1421532 is about 112.4394933891.

Adding to 1421532 its reverse (2351241), we get a palindrome (3772773).

It can be divided in two parts, 1421 and 532, that added together give a triangular number (1953 = T₆₂).

The spelling of 1421532 in words is "one million, four hundred twenty-one thousand, five hundred thirty-two".