1123057440 has 96 divisors (see below), whose sum is σ = 3930716160. Its totient is φ = 299480832.

The previous prime is 1123057423. The next prime is 1123057457. The reversal of 1123057440 is 447503211.

It is an interprime number because it is at equal distance from previous prime (1123057423) and next prime (1123057457).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1123057440² = 2522516027078707200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125664 + ... + 134303.

It is an arithmetic number, because the mean of its divisors is an integer number (40944960).

Almost surely, 2^1123057440 is an apocalyptic number.

1123057440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123057440 is an abundant number, since it is smaller than the sum of its proper divisors (2807658720).

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

1123057440 is a wasteful number, since it uses less digits than its factorization.

1123057440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259991 (or 259977 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1123057440 is about 33512.0491763783. The cubic root of 1123057440 is about 1039.4429462553.

The spelling of 1123057440 in words is "one billion, one hundred twenty-three million, fifty-seven thousand, four hundred forty".