1602420405 has 16 divisors (see below), whose sum is σ = 2564400384. Its totient is φ = 854448320.

The previous prime is 1602420361. The next prime is 1602420439. The reversal of 1602420405 is 5040242061.

It is not a de Polignac number, because 1602420405 - 2¹⁷ = 1602289333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101335 + ... + 116075.

It is an arithmetic number, because the mean of its divisors is an integer number (160275024).

Almost surely, 2^1602420405 is an apocalyptic number.

1602420405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1602420405 is a deficient number, since it is larger than the sum of its proper divisors (961979979).

1602420405 is a wasteful number, since it uses less digits than its factorization.

1602420405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21996.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1602420405 is about 40030.2436290363. The cubic root of 1602420405 is about 1170.1965737360.

Adding to 1602420405 its reverse (5040242061), we get a palindrome (6642662466).

The spelling of 1602420405 in words is "one billion, six hundred two million, four hundred twenty thousand, four hundred five".