1432220240 has 40 divisors (see below), whose sum is σ = 3632633568. Its totient is φ = 520807040.

The previous prime is 1432220191. The next prime is 1432220269. The reversal of 1432220240 is 420222341.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812882 + ... + 814641.

Almost surely, 2^1432220240 is an apocalyptic number.

1432220240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1432220240 is an abundant number, since it is smaller than the sum of its proper divisors (2200413328).

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

1432220240 is a wasteful number, since it uses less digits than its factorization.

1432220240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627547 (or 1627541 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1432220240 is about 37844.6857563912. The cubic root of 1432220240 is about 1127.2059406558.

Adding to 1432220240 its reverse (420222341), we get a palindrome (1852442581).

The spelling of 1432220240 in words is "one billion, four hundred thirty-two million, two hundred twenty thousand, two hundred forty".