340774146 has 48 divisors (see below), whose sum is σ = 785883384. Its totient is φ = 106348032.

The previous prime is 340774079. The next prime is 340774151. The reversal of 340774146 is 641477043.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 323460225 + 17313921 = 17985^2 + 4161^2 .

It is a super-2 number, since 2×340774146² = 232254037164058632, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 340774146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57456 + ... + 63108.

Almost surely, 2^340774146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340774146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392941692).

340774146 is an abundant number, since it is smaller than the sum of its proper divisors (445109238).

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

340774146 is a wasteful number, since it uses less digits than its factorization.

340774146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875 (or 5872 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 340774146 is about 18460.0689597845. The cubic root of 340774146 is about 698.4825263737.

The spelling of 340774146 in words is "three hundred forty million, seven hundred seventy-four thousand, one hundred forty-six".