401600724 has 48 divisors (see below), whose sum is σ = 1133935488. Its totient is φ = 107993088.

The previous prime is 401600711. The next prime is 401600767. The reversal of 401600724 is 427006104.

It is a super-2 number, since 2×401600724² = 322566283034648352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401600694 and 401600703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139189 + ... + 142044.

It is an arithmetic number, because the mean of its divisors is an integer number (23623656).

Almost surely, 2^401600724 is an apocalyptic number.

It is an amenable number.

401600724 is an abundant number, since it is smaller than the sum of its proper divisors (732334764).

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

401600724 is a wasteful number, since it uses less digits than its factorization.

401600724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281264 (or 281262 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 401600724 is about 20039.9781437007. The cubic root of 401600724 is about 737.7878445110.

Adding to 401600724 its reverse (427006104), we get a palindrome (828606828).

The spelling of 401600724 in words is "four hundred one million, six hundred thousand, seven hundred twenty-four".