31344426 has 24 divisors (see below), whose sum is σ = 68165604. Its totient is φ = 10409280.

The previous prime is 31344419. The next prime is 31344431. The reversal of 31344426 is 62444313.

It can be written as a sum of positive squares in 2 ways, for example, as 31304025 + 40401 = 5595^2 + 201^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31344426.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1960 + ... + 8156.

Almost surely, 2^31344426 is an apocalyptic number.

31344426 is an abundant number, since it is smaller than the sum of its proper divisors (36821178).

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

31344426 is a wasteful number, since it uses less digits than its factorization.

31344426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486 (or 6483 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 31344426 is about 5598.6092916009. The cubic root of 31344426 is about 315.2971949501.

Adding to 31344426 its reverse (62444313), we get a palindrome (93788739).

The spelling of 31344426 in words is "thirty-one million, three hundred forty-four thousand, four hundred twenty-six".