401532671 has 8 divisors (see below), whose sum is σ = 406424304. Its totient is φ = 396659200.

The previous prime is 401532653. The next prime is 401532709. The reversal of 401532671 is 176235104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401532671 is a prime.

It is a super-2 number, since 2×401532671² = 322456971760788482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401532601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42911 + ... + 51423.

It is an arithmetic number, because the mean of its divisors is an integer number (50803038).

Almost surely, 2^401532671 is an apocalyptic number.

401532671 is a deficient number, since it is larger than the sum of its proper divisors (4891633).

401532671 is a wasteful number, since it uses less digits than its factorization.

401532671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9081.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 401532671 is about 20038.2801407706. The cubic root of 401532671 is about 737.7461683639.

Adding to 401532671 its reverse (176235104), we get a palindrome (577767775).

It can be divided in two parts, 40153 and 2671, that added together give a palindrome (42824).

The spelling of 401532671 in words is "four hundred one million, five hundred thirty-two thousand, six hundred seventy-one".