401997025248 has 384 divisors, whose sum is σ = 1323615283200. Its totient is φ = 104001822720.

The previous prime is 401997025231. The next prime is 401997025307. The reversal of 401997025248 is 842520799104.

It is a super-2 number, since 2×401997025248² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401997025248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 259519578 + ... + 259521126.

It is an arithmetic number, because the mean of its divisors is an integer number (3446914800).

Almost surely, 2^401997025248 is an apocalyptic number.

401997025248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401997025248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661807641600).

401997025248 is an abundant number, since it is smaller than the sum of its proper divisors (921618257952).

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

401997025248 is a wasteful number, since it uses less digits than its factorization.

401997025248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130 (or 2122 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 401997025248 in words is "four hundred one billion, nine hundred ninety-seven million, twenty-five thousand, two hundred forty-eight".