345026740 has 24 divisors (see below), whose sum is σ = 724910760. Its totient is φ = 137943168.

The previous prime is 345026729. The next prime is 345026753. The reversal of 345026740 is 47620543.

It can be written as a sum of positive squares in 4 ways, for example, as 2702736 + 342324004 = 1644^2 + 18502^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66894 + ... + 71866.

It is an arithmetic number, because the mean of its divisors is an integer number (30204615).

Almost surely, 2^345026740 is an apocalyptic number.

It is an amenable number.

345026740 is an abundant number, since it is smaller than the sum of its proper divisors (379884020).

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

345026740 is a wasteful number, since it uses less digits than its factorization.

345026740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8451 (or 8449 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 345026740 is about 18574.8954236626. The cubic root of 345026740 is about 701.3760279886.

The spelling of 345026740 in words is "three hundred forty-five million, twenty-six thousand, seven hundred forty".