423020515 has 8 divisors (see below), whose sum is σ = 508728528. Its totient is φ = 337680480.

The previous prime is 423020467. The next prime is 423020551. The reversal of 423020515 is 515020324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423020515 - 2²³ = 414631907 is a prime.

It is a super-2 number, since 2×423020515² = 357892712221730450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89457 + ... + 94066.

It is an arithmetic number, because the mean of its divisors is an integer number (63591066).

Almost surely, 2^423020515 is an apocalyptic number.

423020515 is a deficient number, since it is larger than the sum of its proper divisors (85708013).

423020515 is a wasteful number, since it uses less digits than its factorization.

423020515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183989.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 423020515 is about 20567.4625318730. The cubic root of 423020515 is about 750.6782102267.

Adding to 423020515 its reverse (515020324), we get a palindrome (938040839).

The spelling of 423020515 in words is "four hundred twenty-three million, twenty thousand, five hundred fifteen".