402022052 has 12 divisors (see below), whose sum is σ = 744923340. Its totient is φ = 189186816.

The previous prime is 402022009. The next prime is 402022091. The reversal of 402022052 is 250220204.

It can be written as a sum of positive squares in 2 ways, for example, as 286760356 + 115261696 = 16934^2 + 10736^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 402022052.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955977 + ... + 2956112.

It is an arithmetic number, because the mean of its divisors is an integer number (62076945).

Almost surely, 2^402022052 is an apocalyptic number.

It is an amenable number.

402022052 is a deficient number, since it is larger than the sum of its proper divisors (342901288).

402022052 is a wasteful number, since it uses less digits than its factorization.

402022052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912110 (or 5912108 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 402022052 is about 20050.4875751190. The cubic root of 402022052 is about 738.0457640606.

Adding to 402022052 its reverse (250220204), we get a palindrome (652242256).

The spelling of 402022052 in words is "four hundred two million, twenty-two thousand, fifty-two".