224240331 has 32 divisors (see below), whose sum is σ = 349485568. Its totient is φ = 125245440.

The previous prime is 224240321. The next prime is 224240347. The reversal of 224240331 is 133042422.

It is not a de Polignac number, because 224240331 - 2¹⁸ = 223978187 is a prime.

It is a super-2 number, since 2×224240331² = 100567452093979122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224240298 and 224240307.

It is not an unprimeable number, because it can be changed into a prime (224240311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246780 + ... + 247686.

It is an arithmetic number, because the mean of its divisors is an integer number (10921424).

Almost surely, 2^224240331 is an apocalyptic number.

224240331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

224240331 is a deficient number, since it is larger than the sum of its proper divisors (125245237).

224240331 is a wasteful number, since it uses less digits than its factorization.

224240331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 224240331 is about 14974.6562898786. The cubic root of 224240331 is about 607.5349150960.

Adding to 224240331 its reverse (133042422), we get a palindrome (357282753).

The spelling of 224240331 in words is "two hundred twenty-four million, two hundred forty thousand, three hundred thirty-one".