1430120340 has 192 divisors, whose sum is σ = 4923555840. Its totient is φ = 341712000.

The previous prime is 1430120323. The next prime is 1430120369. The reversal of 1430120340 is 430210341.

1430120340 is a `hidden beast` number, since 1 + 4 + 301 + 20 + 340 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 420045 + ... + 423435.

It is an arithmetic number, because the mean of its divisors is an integer number (25643520).

Almost surely, 2^1430120340 is an apocalyptic number.

1430120340 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 1430120340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2461777920).

1430120340 is an abundant number, since it is smaller than the sum of its proper divisors (3493435500).

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

1430120340 is a wasteful number, since it uses less digits than its factorization.

1430120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1430120340 is about 37816.9319220901. The cubic root of 1430120340 is about 1126.6547736725.

Adding to 1430120340 its reverse (430210341), we get a palindrome (1860330681).

Subtracting from 1430120340 its reverse (430210341), we obtain a palindrome (999909999).

The spelling of 1430120340 in words is "one billion, four hundred thirty million, one hundred twenty thousand, three hundred forty".