1423535520 has 192 divisors, whose sum is σ = 4911943680. Its totient is φ = 343680000.

The previous prime is 1423535513. The next prime is 1423535567. The reversal of 1423535520 is 255353241.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1895145 + ... + 1895895.

It is an arithmetic number, because the mean of its divisors is an integer number (25583040).

Almost surely, 2^1423535520 is an apocalyptic number.

1423535520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1423535520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2455971840).

1423535520 is an abundant number, since it is smaller than the sum of its proper divisors (3488408160).

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

1423535520 is a wasteful number, since it uses less digits than its factorization.

1423535520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1423535520 is about 37729.7696785973. The cubic root of 1423535520 is about 1124.9229300290.

Adding to 1423535520 its reverse (255353241), we get a palindrome (1678888761).

The spelling of 1423535520 in words is "one billion, four hundred twenty-three million, five hundred thirty-five thousand, five hundred twenty".