1602781434 has 12 divisors (see below), whose sum is σ = 3472693146. Its totient is φ = 534260472.

The previous prime is 1602781417. The next prime is 1602781469. The reversal of 1602781434 is 4341872061.

1602781434 is a `hidden beast` number, since 1 + 602 + 7 + 8 + 1 + 43 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1524512025 + 78269409 = 39045^2 + 8847^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44521689 + ... + 44521724.

Almost surely, 2^1602781434 is an apocalyptic number.

1602781434 is an abundant number, since it is smaller than the sum of its proper divisors (1869911712).

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

1602781434 is a wasteful number, since it uses less digits than its factorization.

1602781434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89043421 (or 89043418 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1602781434 is about 40034.7528280118. The cubic root of 1602781434 is about 1170.2844497959.

It can be divided in two parts, 16027 and 81434, that added together give a triangular number (97461 = T₄₄₁).

The spelling of 1602781434 in words is "one billion, six hundred two million, seven hundred eighty-one thousand, four hundred thirty-four".