402205254 has 16 divisors (see below), whose sum is σ = 877538880. Its totient is φ = 121880360.

The previous prime is 402205249. The next prime is 402205259. The reversal of 402205254 is 452502204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402205249) and next prime (402205259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402205259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3046944 + ... + 3047075.

It is an arithmetic number, because the mean of its divisors is an integer number (54846180).

Almost surely, 2^402205254 is an apocalyptic number.

402205254 is an abundant number, since it is smaller than the sum of its proper divisors (475333626).

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

402205254 is a wasteful number, since it uses less digits than its factorization.

402205254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094035.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 402205254 is about 20055.0555720995. The cubic root of 402205254 is about 738.1578565241.

Adding to 402205254 its reverse (452502204), we get a palindrome (854707458).

The spelling of 402205254 in words is "four hundred two million, two hundred five thousand, two hundred fifty-four".