424423155 has 32 divisors (see below), whose sum is σ = 740597760. Its totient is φ = 206294400.

The previous prime is 424423079. The next prime is 424423169. The reversal of 424423155 is 551324424.

It is not a de Polignac number, because 424423155 - 2¹⁵ = 424390387 is a prime.

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, 1630 + ... + 29180.

It is an arithmetic number, because the mean of its divisors is an integer number (23143680).

Almost surely, 2^424423155 is an apocalyptic number.

424423155 is a deficient number, since it is larger than the sum of its proper divisors (316174605).

424423155 is a wasteful number, since it uses less digits than its factorization.

424423155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27651.

The product of its digits is 19200, while the sum is 30.

The square root of 424423155 is about 20601.5328313211. The cubic root of 424423155 is about 751.5069877337.

Adding to 424423155 its reverse (551324424), we get a palindrome (975747579).

The spelling of 424423155 in words is "four hundred twenty-four million, four hundred twenty-three thousand, one hundred fifty-five".