1520423000 has 32 divisors (see below), whose sum is σ = 3557792160. Its totient is φ = 608168800.

The previous prime is 1520422963. The next prime is 1520423029. The reversal of 1520423000 is 3240251.

It is a self number, because there is not a number n which added to its sum of digits gives 1520423000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759212 + ... + 761211.

It is an arithmetic number, because the mean of its divisors is an integer number (111181005).

Almost surely, 2^1520423000 is an apocalyptic number.

1520423000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520423000 is an abundant number, since it is smaller than the sum of its proper divisors (2037369160).

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

1520423000 is a wasteful number, since it uses less digits than its factorization.

1520423000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520444 (or 1520430 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1520423000 is about 38992.6018624046. The cubic root of 1520423000 is about 1149.8860630661.

Adding to 1520423000 its reverse (3240251), we get a palindrome (1523663251).

The spelling of 1520423000 in words is "one billion, five hundred twenty million, four hundred twenty-three thousand".