1402247256 has 64 divisors (see below), whose sum is σ = 3735936000. Its totient is φ = 437572608.

The previous prime is 1402247251. The next prime is 1402247257. The reversal of 1402247256 is 6527422041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402247251) 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, 1081 + ... + 52968.

It is an arithmetic number, because the mean of its divisors is an integer number (58374000).

Almost surely, 2^1402247256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402247256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867968000).

1402247256 is an abundant number, since it is smaller than the sum of its proper divisors (2333688744).

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

1402247256 is a wasteful number, since it uses less digits than its factorization.

1402247256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54128 (or 54124 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 1402247256 is about 37446.5920478753. The cubic root of 1402247256 is about 1119.2871888678.

Adding to 1402247256 its reverse (6527422041), we get a palindrome (7929669297).

The spelling of 1402247256 in words is "one billion, four hundred two million, two hundred forty-seven thousand, two hundred fifty-six".