423041520 has 80 divisors (see below), whose sum is σ = 1430658432. Its totient is φ = 102554880.

The previous prime is 423041503. The next prime is 423041533. The reversal of 423041520 is 25140324.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77482 + ... + 82761.

Almost surely, 2^423041520 is an apocalyptic number.

423041520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423041520 is an abundant number, since it is smaller than the sum of its proper divisors (1007616912).

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

423041520 is a wasteful number, since it uses less digits than its factorization.

423041520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160270 (or 160264 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 423041520 is about 20567.9731621762. The cubic root of 423041520 is about 750.6906349471.

Adding to 423041520 its reverse (25140324), we get a palindrome (448181844).

The spelling of 423041520 in words is "four hundred twenty-three million, forty-one thousand, five hundred twenty".