424220556 has 24 divisors (see below), whose sum is σ = 1032885504. Its totient is φ = 135258640.

The previous prime is 424220549. The next prime is 424220569. The reversal of 424220556 is 655022424.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768240 + ... + 768791.

It is an arithmetic number, because the mean of its divisors is an integer number (43036896).

Almost surely, 2^424220556 is an apocalyptic number.

424220556 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

424220556 is an abundant number, since it is smaller than the sum of its proper divisors (608664948).

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

424220556 is a wasteful number, since it uses less digits than its factorization.

424220556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537061 (or 1537059 counting only the distinct ones).

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

The square root of 424220556 is about 20596.6151588070. The cubic root of 424220556 is about 751.3873910567.

The spelling of 424220556 in words is "four hundred twenty-four million, two hundred twenty thousand, five hundred fifty-six".