401450242 has 4 divisors (see below), whose sum is σ = 602175366. Its totient is φ = 200725120.

The previous prime is 401450233. The next prime is 401450243. The reversal of 401450242 is 242054104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 363245481 + 38204761 = 19059^2 + 6181^2 .

It is a super-2 number, since 2×401450242² = 322324593603717128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (401450243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100362559 + ... + 100362562.

Almost surely, 2^401450242 is an apocalyptic number.

401450242 is a deficient number, since it is larger than the sum of its proper divisors (200725124).

401450242 is a wasteful number, since it uses less digits than its factorization.

401450242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200725123.

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

The square root of 401450242 is about 20036.2232469096. The cubic root of 401450242 is about 737.6956819444.

The spelling of 401450242 in words is "four hundred one million, four hundred fifty thousand, two hundred forty-two".