1421708430 has 32 divisors (see below), whose sum is σ = 3560454144. Its totient is φ = 362638496.

The previous prime is 1421708413. The next prime is 1421708467. The reversal of 1421708430 is 348071241.

1421708430 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

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, 1029534 + ... + 1030913.

It is an arithmetic number, because the mean of its divisors is an integer number (111264192).

Almost surely, 2^1421708430 is an apocalyptic number.

1421708430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421708430 is an abundant number, since it is smaller than the sum of its proper divisors (2138745714).

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

1421708430 is a wasteful number, since it uses less digits than its factorization.

1421708430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060480.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1421708430 is about 37705.5490611130. The cubic root of 1421708430 is about 1124.4414491509.

Adding to 1421708430 its reverse (348071241), we get a palindrome (1769779671).

The spelling of 1421708430 in words is "one billion, four hundred twenty-one million, seven hundred eight thousand, four hundred thirty".