402150442 has 8 divisors (see below), whose sum is σ = 604570500. Its totient is φ = 200626944.

The previous prime is 402150421. The next prime is 402150449. The reversal of 402150442 is 244051204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 386948241 + 15202201 = 19671^2 + 3899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (402150449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223017 + ... + 224812.

Almost surely, 2^402150442 is an apocalyptic number.

402150442 is a deficient number, since it is larger than the sum of its proper divisors (202420058).

402150442 is a wasteful number, since it uses less digits than its factorization.

402150442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448280.

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

The square root of 402150442 is about 20053.6889873160. The cubic root of 402150442 is about 738.1243232753.

The spelling of 402150442 in words is "four hundred two million, one hundred fifty thousand, four hundred forty-two".