340427765 has 8 divisors (see below), whose sum is σ = 408648888. Its totient is φ = 272251840.

The previous prime is 340427743. The next prime is 340427777. The reversal of 340427765 is 567724043.

It can be written as a sum of positive squares in 4 ways, for example, as 8532241 + 331895524 = 2921^2 + 18218^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340427765 - 2¹⁴ = 340411381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8399 + ... + 27411.

It is an arithmetic number, because the mean of its divisors is an integer number (51081111).

Almost surely, 2^340427765 is an apocalyptic number.

It is an amenable number.

340427765 is a deficient number, since it is larger than the sum of its proper divisors (68221123).

340427765 is a wasteful number, since it uses less digits than its factorization.

340427765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22599.

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 340427765 is about 18450.6846756428. The cubic root of 340427765 is about 698.2457878583.

The spelling of 340427765 in words is "three hundred forty million, four hundred twenty-seven thousand, seven hundred sixty-five".