401534625 has 64 divisors (see below), whose sum is σ = 691441920. Its totient is φ = 206835200.

The previous prime is 401534603. The next prime is 401534647. The reversal of 401534625 is 526435104.

It is an interprime number because it is at equal distance from previous prime (401534603) and next prime (401534647).

It is not a de Polignac number, because 401534625 - 2⁶ = 401534561 is a prime.

It is a super-2 number, since 2×401534625² = 322460110147781250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 401534592 and 401534601.

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 63 ways as a sum of consecutive naturals, for example, 1768762 + ... + 1768988.

It is an arithmetic number, because the mean of its divisors is an integer number (10803780).

Almost surely, 2^401534625 is an apocalyptic number.

It is an amenable number.

401534625 is a deficient number, since it is larger than the sum of its proper divisors (289907295).

401534625 is a wasteful number, since it uses less digits than its factorization.

401534625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 401534625 is about 20038.3288973906. The cubic root of 401534625 is about 737.7473650733.

Adding to 401534625 its reverse (526435104), we get a palindrome (927969729).

The spelling of 401534625 in words is "four hundred one million, five hundred thirty-four thousand, six hundred twenty-five".