1602040099 has 4 divisors (see below), whose sum is σ = 1747680120. Its totient is φ = 1456400080.

The previous prime is 1602040057. The next prime is 1602040123. The reversal of 1602040099 is 9900402061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1602040099 - 2¹⁷ = 1601909027 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1602040099.

It is not an unprimeable number, because it can be changed into a prime (1602040009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72819994 + ... + 72820015.

It is an arithmetic number, because the mean of its divisors is an integer number (436920030).

Almost surely, 2^1602040099 is an apocalyptic number.

1602040099 is a deficient number, since it is larger than the sum of its proper divisors (145640021).

1602040099 is a wasteful number, since it uses less digits than its factorization.

1602040099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145640020.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1602040099 is about 40025.4931137644. The cubic root of 1602040099 is about 1170.1039912925.

The spelling of 1602040099 in words is "one billion, six hundred two million, forty thousand, ninety-nine".