1430424440 has 64 divisors (see below), whose sum is σ = 3336141600. Its totient is φ = 551536128.

The previous prime is 1430424431. The next prime is 1430424467. The reversal of 1430424440 is 444240341.

It is a happy number.

It is a super-2 number, since 2×1430424440² = 4092228157098627200, which contains 22 as substring.

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, 156887 + ... + 165753.

Almost surely, 2^1430424440 is an apocalyptic number.

1430424440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1430424440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668070800).

1430424440 is an abundant number, since it is smaller than the sum of its proper divisors (1905717160).

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

1430424440 is a wasteful number, since it uses less digits than its factorization.

1430424440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024 (or 9020 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1430424440 is about 37820.9523941426. The cubic root of 1430424440 is about 1126.7346250960.

Adding to 1430424440 its reverse (444240341), we get a palindrome (1874664781).

The spelling of 1430424440 in words is "one billion, four hundred thirty million, four hundred twenty-four thousand, four hundred forty".