425445140 has 24 divisors (see below), whose sum is σ = 897978312. Its totient is φ = 169312640.

The previous prime is 425445133. The next prime is 425445173. The reversal of 425445140 is 41544524.

It can be written as a sum of positive squares in 4 ways, for example, as 175615504 + 249829636 = 13252^2 + 15806^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50051 + ... + 57930.

It is an arithmetic number, because the mean of its divisors is an integer number (37415763).

Almost surely, 2^425445140 is an apocalyptic number.

It is an amenable number.

425445140 is an abundant number, since it is smaller than the sum of its proper divisors (472533172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425445140 is a wasteful number, since it uses less digits than its factorization.

425445140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108187 (or 108185 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 425445140 is about 20626.3215334194. The cubic root of 425445140 is about 752.1096985170.

Adding to 425445140 its reverse (41544524), we get a palindrome (466989664).

It can be divided in two parts, 4254 and 45140, that added together give a palindrome (49394).

The spelling of 425445140 in words is "four hundred twenty-five million, four hundred forty-five thousand, one hundred forty".