401982255 has 24 divisors (see below), whose sum is σ = 737757072. Its totient is φ = 201778944.

The previous prime is 401982233. The next prime is 401982283. The reversal of 401982255 is 552289104.

It is not a de Polignac number, because 401982255 - 2⁷ = 401982127 is a prime.

It is a super-4 number, since 4×401982255⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261969 + ... + 263498.

It is an arithmetic number, because the mean of its divisors is an integer number (30739878).

Almost surely, 2^401982255 is an apocalyptic number.

401982255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

401982255 is a deficient number, since it is larger than the sum of its proper divisors (335774817).

401982255 is a wasteful number, since it uses less digits than its factorization.

401982255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525495 (or 525492 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 401982255 is about 20049.4951308007. The cubic root of 401982255 is about 738.0214096946.

The spelling of 401982255 in words is "four hundred one million, nine hundred eighty-two thousand, two hundred fifty-five".