1432444440 has 96 divisors (see below), whose sum is σ = 4998959280. Its totient is φ = 327414528.

The previous prime is 1432444411. The next prime is 1432444441. The reversal of 1432444440 is 444442341.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1432444398 and 1432444407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1432444441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115927 + ... + 127686.

Almost surely, 2^1432444440 is an apocalyptic number.

1432444440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1432444440 is an abundant number, since it is smaller than the sum of its proper divisors (3566514840).

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

1432444440 is a wasteful number, since it uses less digits than its factorization.

1432444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243641 (or 243630 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 1432444440 is about 37847.6477472511. The cubic root of 1432444440 is about 1127.2647552569.

Adding to 1432444440 its reverse (444442341), we get a palindrome (1876886781).

The spelling of 1432444440 in words is "one billion, four hundred thirty-two million, four hundred forty-four thousand, four hundred forty".