1421504232 has 32 divisors (see below), whose sum is σ = 3762806400. Its totient is φ = 445961984.

The previous prime is 1421504197. The next prime is 1421504233. The reversal of 1421504232 is 2324051241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1421504233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741632 + ... + 1742447.

It is an arithmetic number, because the mean of its divisors is an integer number (117587700).

Almost surely, 2^1421504232 is an apocalyptic number.

1421504232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421504232 is an abundant number, since it is smaller than the sum of its proper divisors (2341302168).

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

1421504232 is a wasteful number, since it uses less digits than its factorization.

1421504232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484105 (or 3484101 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1421504232 is about 37702.8411661509. The cubic root of 1421504232 is about 1124.3876125874.

Adding to 1421504232 its reverse (2324051241), we get a palindrome (3745555473).

The spelling of 1421504232 in words is "one billion, four hundred twenty-one million, five hundred four thousand, two hundred thirty-two".