734278345 has 8 divisors (see below), whose sum is σ = 883401480. Its totient is φ = 585911040.

The previous prime is 734278327. The next prime is 734278373. The reversal of 734278345 is 543872437.

It can be written as a sum of positive squares in 4 ways, for example, as 2521744 + 731756601 = 1588^2 + 27051^2 .

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

It is not a de Polignac number, because 734278345 - 2²¹ = 732181193 is a prime.

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, 186816 + ... + 190705.

It is an arithmetic number, because the mean of its divisors is an integer number (110425185).

Almost surely, 2^734278345 is an apocalyptic number.

It is an amenable number.

734278345 is a deficient number, since it is larger than the sum of its proper divisors (149123135).

734278345 is a wasteful number, since it uses less digits than its factorization.

734278345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377915.

The product of its digits is 564480, while the sum is 43.

The square root of 734278345 is about 27097.5708320875. The cubic root of 734278345 is about 902.1669368983.

The spelling of 734278345 in words is "seven hundred thirty-four million, two hundred seventy-eight thousand, three hundred forty-five".