1423440430 has 32 divisors (see below), whose sum is σ = 2739282624. Its totient is φ = 530674176.

The previous prime is 1423440409. The next prime is 1423440463. The reversal of 1423440430 is 340443241.

It is a junction number, because it is equal to n+sod(n) for n = 1423440395 and 1423440404.

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 15 ways as a sum of consecutive naturals, for example, 23137 + ... + 58156.

It is an arithmetic number, because the mean of its divisors is an integer number (85602582).

Almost surely, 2^1423440430 is an apocalyptic number.

1423440430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423440430 is a deficient number, since it is larger than the sum of its proper divisors (1315842194).

1423440430 is a wasteful number, since it uses less digits than its factorization.

1423440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81420.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1423440430 is about 37728.5095120388. The cubic root of 1423440430 is about 1124.8978817596.

Adding to 1423440430 its reverse (340443241), we get a palindrome (1763883671).

The spelling of 1423440430 in words is "one billion, four hundred twenty-three million, four hundred forty thousand, four hundred thirty".