1428077430 has 192 divisors, whose sum is σ = 4242551040. Its totient is φ = 330386688.

The previous prime is 1428077423. The next prime is 1428077461. The reversal of 1428077430 is 347708241.

It is a happy number.

1428077430 is a `hidden beast` number, since 142 + 80 + 7 + 7 + 430 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5046069 + ... + 5046351.

It is an arithmetic number, because the mean of its divisors is an integer number (22096620).

Almost surely, 2^1428077430 is an apocalyptic number.

1428077430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428077430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121275520).

1428077430 is an abundant number, since it is smaller than the sum of its proper divisors (2814473610).

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

1428077430 is a wasteful number, since it uses less digits than its factorization.

1428077430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 1428077430 is about 37789.9117490369. The cubic root of 1428077430 is about 1126.1180470134.

The spelling of 1428077430 in words is "one billion, four hundred twenty-eight million, seventy-seven thousand, four hundred thirty".