1432421020 has 48 divisors (see below), whose sum is σ = 3352678560. Its totient is φ = 510879744.

The previous prime is 1432421009. The next prime is 1432421047. The reversal of 1432421020 is 201242341.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

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, 104409 + ... + 117328.

It is an arithmetic number, because the mean of its divisors is an integer number (69847470).

Almost surely, 2^1432421020 is an apocalyptic number.

1432421020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1432421020 is an abundant number, since it is smaller than the sum of its proper divisors (1920257540).

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

1432421020 is a wasteful number, since it uses less digits than its factorization.

1432421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221782 (or 221780 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1432421020 is about 37847.3383476302. The cubic root of 1432421020 is about 1127.2586117529.

Adding to 1432421020 its reverse (201242341), we get a palindrome (1633663361).

It can be divided in two parts, 14324 and 21020, that added together give a square (35344 = 188²).

The spelling of 1432421020 in words is "one billion, four hundred thirty-two million, four hundred twenty-one thousand, twenty".