1402224144 has 20 divisors (see below), whose sum is σ = 3622412496. Its totient is φ = 467408032.

The previous prime is 1402224139. The next prime is 1402224151. The reversal of 1402224144 is 4414222041.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 3 ways as a sum of consecutive naturals, for example, 14606454 + ... + 14606549.

Almost surely, 2^1402224144 is an apocalyptic number.

It is an amenable number.

1402224144 is an abundant number, since it is smaller than the sum of its proper divisors (2220188352).

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

1402224144 is a wasteful number, since it uses less digits than its factorization.

1402224144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29213014 (or 29213008 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1402224144 is about 37446.2834470926. The cubic root of 1402224144 is about 1119.2810394274.

Adding to 1402224144 its reverse (4414222041), we get a palindrome (5816446185).

The spelling of 1402224144 in words is "one billion, four hundred two million, two hundred twenty-four thousand, one hundred forty-four".