1122276440 has 32 divisors (see below), whose sum is σ = 2528912880. Its totient is φ = 448236672.

The previous prime is 1122276433. The next prime is 1122276461. The reversal of 1122276440 is 446722211.

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, 6359 + ... + 47801.

Almost surely, 2^1122276440 is an apocalyptic number.

1122276440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122276440 is an abundant number, since it is smaller than the sum of its proper divisors (1406636440).

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

1122276440 is a wasteful number, since it uses less digits than its factorization.

1122276440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42131 (or 42127 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1122276440 is about 33500.3946245414. The cubic root of 1122276440 is about 1039.2019395274.

Adding to 1122276440 its reverse (446722211), we get a palindrome (1568998651).

The spelling of 1122276440 in words is "one billion, one hundred twenty-two million, two hundred seventy-six thousand, four hundred forty".