240821625 has 64 divisors (see below), whose sum is σ = 443289600. Its totient is φ = 115128000.

The previous prime is 240821621. The next prime is 240821627. The reversal of 240821625 is 526128042.

It is not a de Polignac number, because 240821625 - 2² = 240821621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240821592 and 240821601.

It is not an unprimeable number, because it can be changed into a prime (240821621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 325506 + ... + 326244.

It is an arithmetic number, because the mean of its divisors is an integer number (6926400).

Almost surely, 2^240821625 is an apocalyptic number.

240821625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240821625 is a deficient number, since it is larger than the sum of its proper divisors (202467975).

240821625 is a wasteful number, since it uses less digits than its factorization.

240821625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 240821625 is about 15518.4285609078. The cubic root of 240821625 is about 622.1548545557.

Adding to 240821625 its reverse (526128042), we get a palindrome (766949667).

The spelling of 240821625 in words is "two hundred forty million, eight hundred twenty-one thousand, six hundred twenty-five".