404142052 has 6 divisors (see below), whose sum is σ = 707248598. Its totient is φ = 202071024.

The previous prime is 404142047. The next prime is 404142073. The reversal of 404142052 is 250241404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 310323456 + 93818596 = 17616^2 + 9686^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50517753 + ... + 50517760.

Almost surely, 2^404142052 is an apocalyptic number.

It is an amenable number.

404142052 is a deficient number, since it is larger than the sum of its proper divisors (303106546).

404142052 is a wasteful number, since it uses less digits than its factorization.

404142052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101035517 (or 101035515 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 404142052 is about 20103.2846072476. The cubic root of 404142052 is about 739.3408130238.

Adding to 404142052 its reverse (250241404), we get a palindrome (654383456).

The spelling of 404142052 in words is "four hundred four million, one hundred forty-two thousand, fifty-two".