740831 has 12 divisors (see below), whose sum is σ = 928872. Its totient is φ = 585648.

The previous prime is 740801. The next prime is 740849. The reversal of 740831 is 138047.

It is a happy number.

It is not a de Polignac number, because 740831 - 2¹⁴ = 724447 is a prime.

It is a super-2 number, since 2×740831² = 1097661141122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 740797 and 740806.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 740831.

It is not an unprimeable number, because it can be changed into a prime (740801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (77406).

2⁷⁴⁰⁸³¹ is an apocalyptic number.

740831 is a deficient number, since it is larger than the sum of its proper divisors (188041).

740831 is a wasteful number, since it uses less digits than its factorization.

740831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 740831 is about 860.7154001178. The cubic root of 740831 is about 90.4842620904.

Adding to 740831 its reverse (138047), we get a palindrome (878878).

The spelling of 740831 in words is "seven hundred forty thousand, eight hundred thirty-one".