1113553240 has 32 divisors (see below), whose sum is σ = 2511841680. Its totient is φ = 444292992.

The previous prime is 1113553237. The next prime is 1113553247. The reversal of 1113553240 is 423553111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113553247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19182 + ... + 50941.

Almost surely, 2^1113553240 is an apocalyptic number.

1113553240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113553240 is an abundant number, since it is smaller than the sum of its proper divisors (1398288440).

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

1113553240 is a wasteful number, since it uses less digits than its factorization.

1113553240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70531 (or 70527 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1113553240 is about 33369.9451602786. The cubic root of 1113553240 is about 1036.5024396104.

The spelling of 1113553240 in words is "one billion, one hundred thirteen million, five hundred fifty-three thousand, two hundred forty".