672455560 has 128 divisors (see below), whose sum is σ = 1772305920. Its totient is φ = 224888832.

The previous prime is 672455551. The next prime is 672455569. The reversal of 672455560 is 65554276.

It is an interprime number because it is at equal distance from previous prime (672455551) and next prime (672455569).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (672455569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3413382 + ... + 3413578.

It is an arithmetic number, because the mean of its divisors is an integer number (13846140).

Almost surely, 2^672455560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672455560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886152960).

672455560 is an abundant number, since it is smaller than the sum of its proper divisors (1099850360).

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

672455560 is a wasteful number, since it uses less digits than its factorization.

672455560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 672455560 is about 25931.7481092193. The cubic root of 672455560 is about 876.1017132022.

The spelling of 672455560 in words is "six hundred seventy-two million, four hundred fifty-five thousand, five hundred sixty".