1122402544 has 40 divisors (see below), whose sum is σ = 2253337920. Its totient is φ = 540960000.

The previous prime is 1122402493. The next prime is 1122402557. The reversal of 1122402544 is 4452042211.

It is a congruent number.

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, 346854 + ... + 350074.

It is an arithmetic number, because the mean of its divisors is an integer number (56333448).

Almost surely, 2^1122402544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122402544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126668960).

1122402544 is an abundant number, since it is smaller than the sum of its proper divisors (1130935376).

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

1122402544 is a wasteful number, since it uses less digits than its factorization.

1122402544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009 (or 4003 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1122402544 is about 33502.2766987559. The cubic root of 1122402544 is about 1039.2408611955.

Adding to 1122402544 its reverse (4452042211), we get a palindrome (5574444755).

The spelling of 1122402544 in words is "one billion, one hundred twenty-two million, four hundred two thousand, five hundred forty-four".