672340425 has 24 divisors (see below), whose sum is σ = 1112654976. Its totient is φ = 358242240.

The previous prime is 672340423. The next prime is 672340451. The reversal of 672340425 is 524043276.

It is not a de Polignac number, because 672340425 - 2¹ = 672340423 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672340423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89152 + ... + 96398.

It is an arithmetic number, because the mean of its divisors is an integer number (46360624).

Almost surely, 2^672340425 is an apocalyptic number.

It is an amenable number.

672340425 is a deficient number, since it is larger than the sum of its proper divisors (440314551).

672340425 is a wasteful number, since it uses less digits than its factorization.

672340425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8497 (or 8492 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 672340425 is about 25929.5280520105. The cubic root of 672340425 is about 876.0517095370.

The spelling of 672340425 in words is "six hundred seventy-two million, three hundred forty thousand, four hundred twenty-five".