740312 has 16 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 357280.

The previous prime is 740303. The next prime is 740321. The reversal of 740312 is 213047.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (740303) and next prime (740321).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364 + ... + 1827.

It is an arithmetic number, because the mean of its divisors is an integer number (89775).

2⁷⁴⁰³¹² is an apocalyptic number.

It is an amenable number.

740312 is a deficient number, since it is larger than the sum of its proper divisors (696088).

740312 is a wasteful number, since it uses less digits than its factorization.

740312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226 (or 3222 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 740312 is about 860.4138539098. The cubic root of 740312 is about 90.4631271295.

Adding to 740312 its reverse (213047), we get a palindrome (953359).

The spelling of 740312 in words is "seven hundred forty thousand, three hundred twelve", and thus it is an iban number.