1122040240 has 40 divisors (see below), whose sum is σ = 2622296448. Its totient is φ = 446484480.

The previous prime is 1122040217. The next prime is 1122040253. The reversal of 1122040240 is 420402211.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 20896 + ... + 51775.

Almost surely, 2^1122040240 is an apocalyptic number.

1122040240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122040240 is an abundant number, since it is smaller than the sum of its proper divisors (1500256208).

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

1122040240 is a wasteful number, since it uses less digits than its factorization.

1122040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72877 (or 72871 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1122040240 is about 33496.8691074255. The cubic root of 1122040240 is about 1039.1290291726.

Adding to 1122040240 its reverse (420402211), we get a palindrome (1542442451).

The spelling of 1122040240 in words is "one billion, one hundred twenty-two million, forty thousand, two hundred forty".