401254242 has 16 divisors (see below), whose sum is σ = 821172000. Its totient is φ = 130640832.

The previous prime is 401254241. The next prime is 401254261. The reversal of 401254242 is 242452104.

It is a happy number.

It is a super-2 number, since 2×401254242² = 322009933445989128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401254241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777367 + ... + 777882.

It is an arithmetic number, because the mean of its divisors is an integer number (51323250).

Almost surely, 2^401254242 is an apocalyptic number.

401254242 is an abundant number, since it is smaller than the sum of its proper divisors (419917758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401254242 is a wasteful number, since it uses less digits than its factorization.

401254242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555297.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 401254242 is about 20031.3315084145. The cubic root of 401254242 is about 737.5756073783.

The spelling of 401254242 in words is "four hundred one million, two hundred fifty-four thousand, two hundred forty-two".