1602025491 has 16 divisors (see below), whose sum is σ = 2332407168. Its totient is φ = 970012800.

The previous prime is 1602025441. The next prime is 1602025553. The reversal of 1602025491 is 1945202061.

It is not a de Polignac number, because 1602025491 - 2⁹ = 1602024979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1602025441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13755 + ... + 58251.

It is an arithmetic number, because the mean of its divisors is an integer number (145775448).

Almost surely, 2^1602025491 is an apocalyptic number.

1602025491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1602025491 is a deficient number, since it is larger than the sum of its proper divisors (730381677).

1602025491 is a wasteful number, since it uses less digits than its factorization.

1602025491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45602.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1602025491 is about 40025.3106296503. The cubic root of 1602025491 is about 1170.1004348000.

The spelling of 1602025491 in words is "one billion, six hundred two million, twenty-five thousand, four hundred ninety-one".