1602534640 has 40 divisors (see below), whose sum is σ = 4258164960. Its totient is φ = 549440256.

The previous prime is 1602534629. The next prime is 1602534643. The reversal of 1602534640 is 464352061.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602534643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1430275 + ... + 1431394.

It is an arithmetic number, because the mean of its divisors is an integer number (106454124).

Almost surely, 2^1602534640 is an apocalyptic number.

1602534640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1602534640 is an abundant number, since it is smaller than the sum of its proper divisors (2655630320).

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

1602534640 is a wasteful number, since it uses less digits than its factorization.

1602534640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861689 (or 2861683 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1602534640 is about 40031.6704622727. The cubic root of 1602534640 is about 1170.2243804690.

The spelling of 1602534640 in words is "one billion, six hundred two million, five hundred thirty-four thousand, six hundred forty".