401868254 has 8 divisors (see below), whose sum is σ = 623588760. Its totient is φ = 194005336.

The previous prime is 401868251. The next prime is 401868263. The reversal of 401868254 is 452868104.

It is a happy number.

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

It is a super-2 number, since 2×401868254² = 322996187146017032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401868251) 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 3 ways as a sum of consecutive naturals, for example, 3464324 + ... + 3464439.

It is an arithmetic number, because the mean of its divisors is an integer number (77948595).

Almost surely, 2^401868254 is an apocalyptic number.

401868254 is a deficient number, since it is larger than the sum of its proper divisors (221720506).

401868254 is a wasteful number, since it uses less digits than its factorization.

401868254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928794.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 401868254 is about 20046.6519399126. The cubic root of 401868254 is about 737.9516361889.

The spelling of 401868254 in words is "four hundred one million, eight hundred sixty-eight thousand, two hundred fifty-four".