401242132 has 6 divisors (see below), whose sum is σ = 702173738. Its totient is φ = 200621064.

The previous prime is 401242129. The next prime is 401242139. The reversal of 401242132 is 231242104.

It can be written as a sum of positive squares in only one way, i.e., 297079696 + 104162436 = 17236^2 + 10206^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401242139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50155263 + ... + 50155270.

Almost surely, 2^401242132 is an apocalyptic number.

It is an amenable number.

401242132 is a deficient number, since it is larger than the sum of its proper divisors (300931606).

401242132 is a wasteful number, since it uses less digits than its factorization.

401242132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100310537 (or 100310535 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 401242132 is about 20031.0292296726. The cubic root of 401242132 is about 737.5681872030.

Adding to 401242132 its reverse (231242104), we get a palindrome (632484236).

The spelling of 401242132 in words is "four hundred one million, two hundred forty-two thousand, one hundred thirty-two".