2111400036 has 72 divisors (see below), whose sum is σ = 5381560184. Its totient is φ = 697973760.

The previous prime is 2111400029. The next prime is 2111400037. The reversal of 2111400036 is 6300041112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 126697536 + 1984702500 = 11256^2 + 44550^2 .

It is a super-2 number, since 2×2111400036² = 8916020224041602592, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2111399991 and 2111400018.

It is not an unprimeable number, because it can be changed into a prime (2111400037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3444066 + ... + 3444678.

Almost surely, 2^2111400036 is an apocalyptic number.

It is an amenable number.

2111400036 is an abundant number, since it is smaller than the sum of its proper divisors (3270160148).

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

2111400036 is a wasteful number, since it uses less digits than its factorization.

2111400036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2111400036 is about 45949.9731882403. The cubic root of 2111400036 is about 1282.8922302698.

Adding to 2111400036 its reverse (6300041112), we get a palindrome (8411441148).

The spelling of 2111400036 in words is "two billion, one hundred eleven million, four hundred thousand, thirty-six".