224651972 has 12 divisors (see below), whose sum is σ = 413832720. Its totient is φ = 106414056.

The previous prime is 224651969. The next prime is 224651989. The reversal of 224651972 is 279156422.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477898 + ... + 1478049.

It is an arithmetic number, because the mean of its divisors is an integer number (34486060).

Almost surely, 2^224651972 is an apocalyptic number.

It is an amenable number.

224651972 is a deficient number, since it is larger than the sum of its proper divisors (189180748).

224651972 is a wasteful number, since it uses less digits than its factorization.

224651972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955970 (or 2955968 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 224651972 is about 14988.3945771387. The cubic root of 224651972 is about 607.9064411961.

The spelling of 224651972 in words is "two hundred twenty-four million, six hundred fifty-one thousand, nine hundred seventy-two".