1055100240 has 120 divisors (see below), whose sum is σ = 3751855848. Its totient is φ = 264806400.

The previous prime is 1055100239. The next prime is 1055100247. The reversal of 1055100240 is 420015501.

It can be written as a sum of positive squares in 4 ways, for example, as 49956624 + 1005143616 = 7068^2 + 31704^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1055100240² = 2226473032896115200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055100247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30861 + ... + 55340.

Almost surely, 2^1055100240 is an apocalyptic number.

1055100240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055100240 is an abundant number, since it is smaller than the sum of its proper divisors (2696755608).

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

1055100240 is a wasteful number, since it uses less digits than its factorization.

1055100240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86237 (or 86228 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1055100240 is about 32482.3065683458. The cubic root of 1055100240 is about 1018.0393709773.

Adding to 1055100240 its reverse (420015501), we get a palindrome (1475115741).

The spelling of 1055100240 in words is "one billion, fifty-five million, one hundred thousand, two hundred forty".