340728767 has 12 divisors (see below), whose sum is σ = 363007656. Its totient is φ = 319742640.

The previous prime is 340728763. The next prime is 340728809. The reversal of 340728767 is 767827043.

It is not a de Polignac number, because 340728767 - 2² = 340728763 is a prime.

It is a super-2 number, since 2×340728767² = 232192185322680578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340728763) 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, 34217 + ... + 43037.

It is an arithmetic number, because the mean of its divisors is an integer number (30250638).

Almost surely, 2^340728767 is an apocalyptic number.

340728767 is a deficient number, since it is larger than the sum of its proper divisors (22278889).

340728767 is a wasteful number, since it uses less digits than its factorization.

340728767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8966 (or 8947 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 340728767 is about 18458.8398064450. The cubic root of 340728767 is about 698.4515206514.

The spelling of 340728767 in words is "three hundred forty million, seven hundred twenty-eight thousand, seven hundred sixty-seven".