2002455 has 64 divisors (see below), whose sum is σ = 4408320. Its totient is φ = 839808.

The previous prime is 2002453. The next prime is 2002459. The reversal of 2002455 is 5542002.

It is not a de Polignac number, because 2002455 - 2¹ = 2002453 is a prime.

2002455 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002453) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12204 + ... + 12366.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2^2002455 is an apocalyptic number.

2002455 is an abundant number, since it is smaller than the sum of its proper divisors (2405865).

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

2002455 is a wasteful number, since it uses less digits than its factorization.

2002455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2002455 is about 1415.0812697510. The cubic root of 2002455 is about 126.0436356802.

Adding to 2002455 its reverse (5542002), we get a palindrome (7544457).

The spelling of 2002455 in words is "two million, two thousand, four hundred fifty-five".