401263022250 has 96 divisors (see below), whose sum is σ = 1089882114048. Its totient is φ = 106523503200.

The previous prime is 401263022233. The next prime is 401263022297. The reversal of 401263022250 is 52220362104.

It is a happy number.

401263022250 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 630 + 2 + 2 + 25 + 0 = 666.

It is a super-2 number, since 2×401263022250² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101887 + ... + 901613.

It is an arithmetic number, because the mean of its divisors is an integer number (11352938688).

Almost surely, 2^401263022250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401263022250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544941057024).

401263022250 is an abundant number, since it is smaller than the sum of its proper divisors (688619091798).

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

401263022250 is a wasteful number, since it uses less digits than its factorization.

401263022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799973 (or 799960 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 401263022250 its reverse (52220362104), we get a palindrome (453483384354).

The spelling of 401263022250 in words is "four hundred one billion, two hundred sixty-three million, twenty-two thousand, two hundred fifty".