1432020440 has 32 divisors (see below), whose sum is σ = 3290604480. Its totient is φ = 560620032.

The previous prime is 1432020431. The next prime is 1432020523. The reversal of 1432020440 is 440202341.

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 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, 378977 + ... + 382736.

It is an arithmetic number, because the mean of its divisors is an integer number (102831390).

Almost surely, 2^1432020440 is an apocalyptic number.

1432020440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1432020440 is an abundant number, since it is smaller than the sum of its proper divisors (1858584040).

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

1432020440 is a wasteful number, since it uses less digits than its factorization.

1432020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761771 (or 761767 counting only the distinct ones).

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

The square root of 1432020440 is about 37842.0459277772. The cubic root of 1432020440 is about 1127.1535217577.

Adding to 1432020440 its reverse (440202341), we get a palindrome (1872222781).

The spelling of 1432020440 in words is "one billion, four hundred thirty-two million, twenty thousand, four hundred forty".