401587304 has 8 divisors (see below), whose sum is σ = 752976210. Its totient is φ = 200793648.

The previous prime is 401587301. The next prime is 401587343. The reversal of 401587304 is 403785104.

It can be written as a sum of positive squares in only one way, i.e., 394816900 + 6770404 = 19870^2 + 2602^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×401587304² = 322544725467976832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401587301) by changing a digit.

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 as a sum of consecutive naturals, namely, 25099199 + ... + 25099214.

Almost surely, 2^401587304 is an apocalyptic number.

It is an amenable number.

401587304 is a deficient number, since it is larger than the sum of its proper divisors (351388906).

401587304 is a wasteful number, since it uses less digits than its factorization.

401587304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50198419 (or 50198415 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 401587304 is about 20039.6433101989. The cubic root of 401587304 is about 737.7796263791.

It can be divided in two parts, 4015 and 87304, that added together give a palindrome (91319).

The spelling of 401587304 in words is "four hundred one million, five hundred eighty-seven thousand, three hundred four".