1602513444 has 72 divisors (see below), whose sum is σ = 4377636480. Its totient is φ = 454918464.

The previous prime is 1602513443. The next prime is 1602513481. The reversal of 1602513444 is 4443152061.

It is a super-2 number, since 2×1602513444² = 5136098676401482272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1602513443) 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, 83637 + ... + 100995.

Almost surely, 2^1602513444 is an apocalyptic number.

1602513444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1602513444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188818240).

1602513444 is an abundant number, since it is smaller than the sum of its proper divisors (2775123036).

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

1602513444 is a wasteful number, since it uses less digits than its factorization.

1602513444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17537 (or 17528 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1602513444 is about 40031.4057210086. The cubic root of 1602513444 is about 1170.2192211036.

The spelling of 1602513444 in words is "one billion, six hundred two million, five hundred thirteen thousand, four hundred forty-four".