340370428 has 12 divisors (see below), whose sum is σ = 608321952. Its totient is φ = 166564160.

The previous prime is 340370411. The next prime is 340370431. The reversal of 340370428 is 824073043.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 340370428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905053 + ... + 905428.

It is an arithmetic number, because the mean of its divisors is an integer number (50693496).

Almost surely, 2^340370428 is an apocalyptic number.

It is an amenable number.

340370428 is a deficient number, since it is larger than the sum of its proper divisors (267951524).

340370428 is a wasteful number, since it uses less digits than its factorization.

340370428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810532 (or 1810530 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 340370428 is about 18449.1308196348. The cubic root of 340370428 is about 698.2065846648.

The spelling of 340370428 in words is "three hundred forty million, three hundred seventy thousand, four hundred twenty-eight".