401523652 has 24 divisors (see below), whose sum is σ = 713629952. Its totient is φ = 197640000.

The previous prime is 401523649. The next prime is 401523659. The reversal of 401523652 is 256325104.

It is a super-2 number, since 2×401523652² = 322442486230834208, 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 401523652.

It is not an unprimeable number, because it can be changed into a prime (401523659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218377 + ... + 220207.

Almost surely, 2^401523652 is an apocalyptic number.

It is an amenable number.

401523652 is a deficient number, since it is larger than the sum of its proper divisors (312106300).

401523652 is a wasteful number, since it uses less digits than its factorization.

401523652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 401523652 is about 20038.0550952432. The cubic root of 401523652 is about 737.7406447100.

Adding to 401523652 its reverse (256325104), we get a palindrome (657848756).

The spelling of 401523652 in words is "four hundred one million, five hundred twenty-three thousand, six hundred fifty-two".