1602800040 has 128 divisors (see below), whose sum is σ = 4955333760. Its totient is φ = 414434304.

The previous prime is 1602800039. The next prime is 1602800041. The reversal of 1602800040 is 400082061.

It is an interprime number because it is at equal distance from previous prime (1602800039) and next prime (1602800041).

It is not an unprimeable number, because it can be changed into a prime (1602800041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2073094 + ... + 2073866.

It is an arithmetic number, because the mean of its divisors is an integer number (38713545).

Almost surely, 2^1602800040 is an apocalyptic number.

1602800040 is a gapful number since it is divisible by the number (10) 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 1602800040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2477666880).

1602800040 is an abundant number, since it is smaller than the sum of its proper divisors (3352533720).

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

1602800040 is a wasteful number, since it uses less digits than its factorization.

1602800040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1602800040 is about 40034.9852004469. The cubic root of 1602800040 is about 1170.2889782213.

The spelling of 1602800040 in words is "one billion, six hundred two million, eight hundred thousand, forty".