742312 has 8 divisors (see below), whose sum is σ = 1391850. Its totient is φ = 371152.

The previous prime is 742307. The next prime is 742327. The reversal of 742312 is 213247.

742312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 729316 + 12996 = 854^2 + 114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 742312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46387 + ... + 46402.

2⁷⁴²³¹² is an apocalyptic number.

It is an amenable number.

742312 is a deficient number, since it is larger than the sum of its proper divisors (649538).

742312 is a wasteful number, since it uses less digits than its factorization.

742312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92795 (or 92791 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 742312 is about 861.5753014102. The cubic root of 742312 is about 90.5445178451.

Adding to 742312 its reverse (213247), we get a palindrome (955559).

The spelling of 742312 in words is "seven hundred forty-two thousand, three hundred twelve", and thus it is an iban number.