402205342 has 16 divisors (see below), whose sum is σ = 752176512. Its totient is φ = 156703320.

The previous prime is 402205333. The next prime is 402205343. The reversal of 402205342 is 243502204.

It is a super-3 number, since 3×402205342³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402205343) 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, 1305708 + ... + 1306015.

It is an arithmetic number, because the mean of its divisors is an integer number (47011032).

Almost surely, 2^402205342 is an apocalyptic number.

402205342 is a deficient number, since it is larger than the sum of its proper divisors (349971170).

402205342 is a wasteful number, since it uses less digits than its factorization.

402205342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611743.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 402205342 is about 20055.0577660599. The cubic root of 402205342 is about 738.1579103589.

Adding to 402205342 its reverse (243502204), we get a palindrome (645707546).

The spelling of 402205342 in words is "four hundred two million, two hundred five thousand, three hundred forty-two".