401273892 has 48 divisors (see below), whose sum is σ = 1045329600. Its totient is φ = 133116480.

The previous prime is 401273891. The next prime is 401273897. The reversal of 401273892 is 298372104.

It is a super-2 number, since 2×401273892² = 322041472801655328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (401273891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13984 + ... + 31592.

It is an arithmetic number, because the mean of its divisors is an integer number (21777700).

Almost surely, 2^401273892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401273892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522664800).

401273892 is an abundant number, since it is smaller than the sum of its proper divisors (644055708).

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

401273892 is a wasteful number, since it uses less digits than its factorization.

401273892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17833 (or 17825 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 401273892 is about 20031.8219840333. The cubic root of 401273892 is about 737.5876472295.

The spelling of 401273892 in words is "four hundred one million, two hundred seventy-three thousand, eight hundred ninety-two".