1402443536 has 20 divisors (see below), whose sum is σ = 2926252812. Its totient is φ = 647281536.

The previous prime is 1402443533. The next prime is 1402443569. The reversal of 1402443536 is 6353442041.

It can be written as a sum of positive squares in 2 ways, for example, as 122235136 + 1280208400 = 11056^2 + 35780^2 .

It is not an unprimeable number, because it can be changed into a prime (1402443533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3371051 + ... + 3371466.

Almost surely, 2^1402443536 is an apocalyptic number.

1402443536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1402443536 is an abundant number, since it is smaller than the sum of its proper divisors (1523809276).

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

1402443536 is a wasteful number, since it uses less digits than its factorization.

1402443536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742538 (or 6742532 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 1402443536 is about 37449.2127554105. The cubic root of 1402443536 is about 1119.3394106232.

Adding to 1402443536 its reverse (6353442041), we get a palindrome (7755885577).

The spelling of 1402443536 in words is "one billion, four hundred two million, four hundred forty-three thousand, five hundred thirty-six".