401918850270 has 384 divisors, whose sum is σ = 1288239593472. Its totient is φ = 84851712000.

The previous prime is 401918850241. The next prime is 401918850299. The reversal of 401918850270 is 72058819104.

It is an interprime number because it is at equal distance from previous prime (401918850241) and next prime (401918850299).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 223163370 + ... + 223165170.

It is an arithmetic number, because the mean of its divisors is an integer number (3354790608).

Almost surely, 2^401918850270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401918850270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644119796736).

401918850270 is an abundant number, since it is smaller than the sum of its proper divisors (886320743202).

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

401918850270 is a wasteful number, since it uses less digits than its factorization.

401918850270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2213 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 401918850270 in words is "four hundred one billion, nine hundred eighteen million, eight hundred fifty thousand, two hundred seventy".