220040425 has 48 divisors (see below), whose sum is σ = 327121920. Its totient is φ = 144936000.

The previous prime is 220040423. The next prime is 220040437. The reversal of 220040425 is 524040022.

It is not a de Polignac number, because 220040425 - 2¹ = 220040423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (220040423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119260 + ... + 121090.

It is an arithmetic number, because the mean of its divisors is an integer number (6815040).

Almost surely, 2^220040425 is an apocalyptic number.

220040425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220040425 is a deficient number, since it is larger than the sum of its proper divisors (107081495).

220040425 is a wasteful number, since it uses less digits than its factorization.

220040425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 220040425 is about 14833.7596380688. The cubic root of 220040425 is about 603.7180468810.

Adding to 220040425 its reverse (524040022), we get a palindrome (744080447).

The spelling of 220040425 in words is "two hundred twenty million, forty thousand, four hundred twenty-five".