1400201856 has 128 divisors (see below), whose sum is σ = 4147320000. Its totient is φ = 465067008.

The previous prime is 1400201851. The next prime is 1400201857. The reversal of 1400201856 is 6581020041.

1400201856 is a `hidden beast` number, since 1 + 400 + 201 + 8 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is not an unprimeable number, because it can be changed into a prime (1400201851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309290 + ... + 1310358.

Almost surely, 2^1400201856 is an apocalyptic number.

1400201856 is a gapful number since it is divisible by the number (16) 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 1400201856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073660000).

1400201856 is an abundant number, since it is smaller than the sum of its proper divisors (2747118144).

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

1400201856 is a wasteful number, since it uses less digits than its factorization.

1400201856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1453 counting only the distinct ones).

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

The square root of 1400201856 is about 37419.2711847786. The cubic root of 1400201856 is about 1118.7427047536.

Adding to 1400201856 its reverse (6581020041), we get a palindrome (7981221897).

The spelling of 1400201856 in words is "one billion, four hundred million, two hundred one thousand, eight hundred fifty-six".