670125420 has 48 divisors (see below), whose sum is σ = 2084836320. Its totient is φ = 178699968.

The previous prime is 670125377. The next prime is 670125427. The reversal of 670125420 is 24521076.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (670125427) 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 15 ways as a sum of consecutive naturals, for example, 619947 + ... + 621026.

It is an arithmetic number, because the mean of its divisors is an integer number (43434090).

Almost surely, 2^670125420 is an apocalyptic number.

670125420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670125420 is an abundant number, since it is smaller than the sum of its proper divisors (1414710900).

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

670125420 is a wasteful number, since it uses less digits than its factorization.

670125420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240991 (or 1240983 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 670125420 is about 25886.7807963833. The cubic root of 670125420 is about 875.0886092577.

Adding to 670125420 its reverse (24521076), we get a palindrome (694646496).

The spelling of 670125420 in words is "six hundred seventy million, one hundred twenty-five thousand, four hundred twenty".