1423520430 has 32 divisors (see below), whose sum is σ = 3429761184. Its totient is φ = 378126336.

The previous prime is 1423520389. The next prime is 1423520437. The reversal of 1423520430 is 340253241.

It is a self number, because there is not a number n which added to its sum of digits gives 1423520430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423520437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84607 + ... + 100026.

It is an arithmetic number, because the mean of its divisors is an integer number (107180037).

Almost surely, 2^1423520430 is an apocalyptic number.

1423520430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423520430 is an abundant number, since it is smaller than the sum of its proper divisors (2006240754).

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

1423520430 is a wasteful number, since it uses less digits than its factorization.

1423520430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184900.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1423520430 is about 37729.5697033507. The cubic root of 1423520430 is about 1124.9189551493.

Adding to 1423520430 its reverse (340253241), we get a palindrome (1763773671).

The spelling of 1423520430 in words is "one billion, four hundred twenty-three million, five hundred twenty thousand, four hundred thirty".