401427732 has 48 divisors (see below), whose sum is σ = 1001633472. Its totient is φ = 124684800.

The previous prime is 401427731. The next prime is 401427737. The reversal of 401427732 is 237724104.

It is a super-2 number, since 2×401427732² = 322288448037327648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401427732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401427731) 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, 10863 + ... + 30345.

It is an arithmetic number, because the mean of its divisors is an integer number (20867364).

Almost surely, 2^401427732 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 401427732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500816736).

401427732 is an abundant number, since it is smaller than the sum of its proper divisors (600205740).

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

401427732 is a wasteful number, since it uses less digits than its factorization.

401427732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608 (or 19606 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 401427732 is about 20035.6615064240. The cubic root of 401427732 is about 737.6818937349.

It can be divided in two parts, 40142 and 7732, that added together give a palindrome (47874).

The spelling of 401427732 in words is "four hundred one million, four hundred twenty-seven thousand, seven hundred thirty-two".