675945540 has 96 divisors (see below), whose sum is σ = 2147765760. Its totient is φ = 176410368.

The previous prime is 675945527. The next prime is 675945541. The reversal of 675945540 is 45549576.

675945540 is a `hidden beast` number, since 6 + 7 + 5 + 94 + 554 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (675945541) 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, 12064 + ... + 38696.

It is an arithmetic number, because the mean of its divisors is an integer number (22372560).

Almost surely, 2^675945540 is an apocalyptic number.

675945540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675945540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1073882880).

675945540 is an abundant number, since it is smaller than the sum of its proper divisors (1471820220).

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

675945540 is a wasteful number, since it uses less digits than its factorization.

675945540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26698 (or 26690 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 675945540 is about 25998.9526712135. The cubic root of 675945540 is about 877.6147267631.

The spelling of 675945540 in words is "six hundred seventy-five million, nine hundred forty-five thousand, five hundred forty".