1240321224 has 32 divisors (see below), whose sum is σ = 3283204320. Its totient is φ = 389120256.

The previous prime is 1240321183. The next prime is 1240321237. The reversal of 1240321224 is 4221230421.

It is a self number, because there is not a number n which added to its sum of digits gives 1240321224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519594 + ... + 1520409.

It is an arithmetic number, because the mean of its divisors is an integer number (102600135).

Almost surely, 2^1240321224 is an apocalyptic number.

It is an amenable number.

1240321224 is an abundant number, since it is smaller than the sum of its proper divisors (2042883096).

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

1240321224 is a wasteful number, since it uses less digits than its factorization.

1240321224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040029 (or 3040025 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1240321224 is about 35218.1945022740. The cubic root of 1240321224 is about 1074.4298325631.

Adding to 1240321224 its reverse (4221230421), we get a palindrome (5461551645).

The spelling of 1240321224 in words is "one billion, two hundred forty million, three hundred twenty-one thousand, two hundred twenty-four".