340278246 has 168 divisors, whose sum is σ = 973390824. Its totient is φ = 88179840.

The previous prime is 340278241. The next prime is 340278251. The reversal of 340278246 is 642872043.

340278246 is a `hidden beast` number, since 3 + 402 + 7 + 8 + 246 = 666.

It is an interprime number because it is at equal distance from previous prime (340278241) and next prime (340278251).

It is a zygodrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 340278246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340278241) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 785646 + ... + 786078.

It is an arithmetic number, because the mean of its divisors is an integer number (5793993).

Almost surely, 2^340278246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340278246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486695412).

340278246 is an abundant number, since it is smaller than the sum of its proper divisors (633112578).

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

340278246 is a wasteful number, since it uses less digits than its factorization.

340278246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 340278246 is about 18446.6323755855. The cubic root of 340278246 is about 698.1435475682.

The spelling of 340278246 in words is "three hundred forty million, two hundred seventy-eight thousand, two hundred forty-six".