1423506620 has 12 divisors (see below), whose sum is σ = 2989363944. Its totient is φ = 569402640.

The previous prime is 1423506571. The next prime is 1423506631. The reversal of 1423506620 is 266053241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35587646 + ... + 35587685.

It is an arithmetic number, because the mean of its divisors is an integer number (249113662).

Almost surely, 2^1423506620 is an apocalyptic number.

1423506620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423506620 is an abundant number, since it is smaller than the sum of its proper divisors (1565857324).

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

1423506620 is a wasteful number, since it uses less digits than its factorization.

1423506620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71175340 (or 71175338 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1423506620 is about 37729.3866899530. The cubic root of 1423506620 is about 1124.9153174118.

Adding to 1423506620 its reverse (266053241), we get a palindrome (1689559861).

The spelling of 1423506620 in words is "one billion, four hundred twenty-three million, five hundred six thousand, six hundred twenty".