345047255440 has 40 divisors (see below), whose sum is σ = 802260761400. Its totient is φ = 138014447616.

The previous prime is 345047255431. The next prime is 345047255461. The reversal of 345047255440 is 44552740543.

It can be written as a sum of positive squares in 4 ways, for example, as 173492242576 + 171555012864 = 416524^2 + 414192^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 3677592 + ... + 3770248.

It is an arithmetic number, because the mean of its divisors is an integer number (20056519035).

Almost surely, 2^345047255440 is an apocalyptic number.

It is an amenable number.

345047255440 is an abundant number, since it is smaller than the sum of its proper divisors (457213505960).

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

345047255440 is a wasteful number, since it uses less digits than its factorization.

345047255440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139219 (or 139213 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 43.

Adding to 345047255440 its reverse (44552740543), we get a palindrome (389599995983).

The spelling of 345047255440 in words is "three hundred forty-five billion, forty-seven million, two hundred fifty-five thousand, four hundred forty".