401555254 has 8 divisors (see below), whose sum is σ = 611323128. Its totient is φ = 197780880.

The previous prime is 401555251. The next prime is 401555267. The reversal of 401555254 is 452555104.

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

It is a super-2 number, since 2×401555254² = 322493244030009032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401555251) 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, 1498207 + ... + 1498474.

It is an arithmetic number, because the mean of its divisors is an integer number (76415391).

Almost surely, 2^401555254 is an apocalyptic number.

401555254 is a deficient number, since it is larger than the sum of its proper divisors (209767874).

401555254 is a wasteful number, since it uses less digits than its factorization.

401555254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996750.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 401555254 is about 20038.8436293115. The cubic root of 401555254 is about 737.7599988777.

The spelling of 401555254 in words is "four hundred one million, five hundred fifty-five thousand, two hundred fifty-four".