1135403720 has 32 divisors (see below), whose sum is σ = 2786901120. Its totient is φ = 412873920.

The previous prime is 1135403707. The next prime is 1135403761. The reversal of 1135403720 is 273045311.

It is a self number, because there is not a number n which added to its sum of digits gives 1135403720.

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, 1289792 + ... + 1290671.

It is an arithmetic number, because the mean of its divisors is an integer number (87090660).

Almost surely, 2^1135403720 is an apocalyptic number.

1135403720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135403720 is an abundant number, since it is smaller than the sum of its proper divisors (1651497400).

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

1135403720 is a wasteful number, since it uses less digits than its factorization.

1135403720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580485 (or 2580481 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 1135403720 is about 33695.7522545498. The cubic root of 1135403720 is about 1043.2380954236.

The spelling of 1135403720 in words is "one billion, one hundred thirty-five million, four hundred three thousand, seven hundred twenty".