1432221420 has 48 divisors (see below), whose sum is σ = 4583109888. Its totient is φ = 327364800.

The previous prime is 1432221391. The next prime is 1432221433. The reversal of 1432221420 is 241222341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704606 + ... + 1705445.

It is an arithmetic number, because the mean of its divisors is an integer number (95481456).

Almost surely, 2^1432221420 is an apocalyptic number.

1432221420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1432221420 is an abundant number, since it is smaller than the sum of its proper divisors (3150888468).

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

1432221420 is a wasteful number, since it uses less digits than its factorization.

1432221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410070 (or 3410068 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1432221420 is about 37844.7013464236. The cubic root of 1432221420 is about 1127.2062502224.

Adding to 1432221420 its reverse (241222341), we get a palindrome (1673443761).

The spelling of 1432221420 in words is "one billion, four hundred thirty-two million, two hundred twenty-one thousand, four hundred twenty".