764442 has 24 divisors (see below), whose sum is σ = 1893216. Its totient is φ = 218376.

The previous prime is 764431. The next prime is 764447. The reversal of 764442 is 244467.

764442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (764447) by changing a digit.

764442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2908 + ... + 3159.

It is an arithmetic number, because the mean of its divisors is an integer number (78884).

2⁷⁶⁴⁴⁴² is an apocalyptic number.

764442 is an abundant number, since it is smaller than the sum of its proper divisors (1128774).

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

764442 is a wasteful number, since it uses less digits than its factorization.

764442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6082 (or 6079 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 764442 is about 874.3237386689. The cubic root of 764442 is about 91.4355005444.

The spelling of 764442 in words is "seven hundred sixty-four thousand, four hundred forty-two".