1602985590 has 48 divisors (see below), whose sum is σ = 4412929248. Its totient is φ = 402317568.

The previous prime is 1602985589. The next prime is 1602985591. The reversal of 1602985590 is 955892061.

1602985590 is a `hidden beast` number, since 1 + 6 + 0 + 2 + 98 + 559 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1602985589) and next prime (1602985591).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602985591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 522322 + ... + 525381.

It is an arithmetic number, because the mean of its divisors is an integer number (91936026).

Almost surely, 2^1602985590 is an apocalyptic number.

1602985590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1602985590 is an abundant number, since it is smaller than the sum of its proper divisors (2809943658).

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

1602985590 is a wasteful number, since it uses less digits than its factorization.

1602985590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047733 (or 1047730 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 1602985590 is about 40037.3024815609. The cubic root of 1602985590 is about 1170.3341364310.

The spelling of 1602985590 in words is "one billion, six hundred two million, nine hundred eighty-five thousand, five hundred ninety".