1400056812 has 180 divisors, whose sum is σ = 4645212264. Its totient is φ = 363605760.

The previous prime is 1400056799. The next prime is 1400056837. The reversal of 1400056812 is 2186500041.

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 59 ways as a sum of consecutive naturals, for example, 170628 + ... + 178644.

Almost surely, 2^1400056812 is an apocalyptic number.

1400056812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400056812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2322606132).

1400056812 is an abundant number, since it is smaller than the sum of its proper divisors (3245155452).

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

1400056812 is a wasteful number, since it uses less digits than its factorization.

1400056812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8058 (or 8040 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1400056812 is about 37417.3330423214. Note that the first 3 decimals coincide. The cubic root of 1400056812 is about 1118.7040740091.

Adding to 1400056812 its reverse (2186500041), we get a palindrome (3586556853).

The spelling of 1400056812 in words is "one billion, four hundred million, fifty-six thousand, eight hundred twelve".