1402526144 has 56 divisors (see below), whose sum is σ = 2866064880. Its totient is φ = 680472576.

The previous prime is 1402526143. The next prime is 1402526161. The reversal of 1402526144 is 4416252041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402526143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1389512 + ... + 1390520.

It is an arithmetic number, because the mean of its divisors is an integer number (51179730).

Almost surely, 2^1402526144 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 1402526144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433032440).

1402526144 is an abundant number, since it is smaller than the sum of its proper divisors (1463538736).

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

1402526144 is a wasteful number, since it uses less digits than its factorization.

1402526144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1402526144 is about 37450.3156729019. The cubic root of 1402526144 is about 1119.3613876398.

Adding to 1402526144 its reverse (4416252041), we get a palindrome (5818778185).

The spelling of 1402526144 in words is "one billion, four hundred two million, five hundred twenty-six thousand, one hundred forty-four".