756642 has 8 divisors (see below), whose sum is σ = 1513296. Its totient is φ = 252212.

The previous prime is 756641. The next prime is 756649. The reversal of 756642 is 246657.

756642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

756642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (756641) 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, 63048 + ... + 63059.

It is an arithmetic number, because the mean of its divisors is an integer number (189162).

2⁷⁵⁶⁶⁴² is an apocalyptic number.

756642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

756642 is a wasteful number, since it uses less digits than its factorization.

756642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126112.

The product of its digits is 10080, while the sum is 30.

The square root of 756642 is about 869.8517115003. The cubic root of 756642 is about 91.1234487666.

The spelling of 756642 in words is "seven hundred fifty-six thousand, six hundred forty-two".