755001640 has 16 divisors (see below), whose sum is σ = 1698753780. Its totient is φ = 302000640.

The previous prime is 755001629. The next prime is 755001641. The reversal of 755001640 is 46100557.

It can be written as a sum of positive squares in 2 ways, for example, as 749992996 + 5008644 = 27386^2 + 2238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 755001599 and 755001608.

It is not an unprimeable number, because it can be changed into a prime (755001641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9437481 + ... + 9437560.

Almost surely, 2^755001640 is an apocalyptic number.

It is an amenable number.

755001640 is an abundant number, since it is smaller than the sum of its proper divisors (943752140).

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

755001640 is a wasteful number, since it uses less digits than its factorization.

755001640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875052 (or 18875048 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 755001640 is about 27477.2931709075. The cubic root of 755001640 is about 910.5755084355.

The spelling of 755001640 in words is "seven hundred fifty-five million, one thousand, six hundred forty".