4345342640 has 40 divisors (see below), whose sum is σ = 10337881488. Its totient is φ = 1697713920.

The previous prime is 4345342619. The next prime is 4345342667. The reversal of 4345342640 is 462435434.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4345342640.

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, 628151 + ... + 635030.

Almost surely, 2^4345342640 is an apocalyptic number.

4345342640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4345342640 is an abundant number, since it is smaller than the sum of its proper divisors (5992538848).

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

4345342640 is a wasteful number, since it uses less digits than its factorization.

4345342640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263237 (or 1263231 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

The square root of 4345342640 is about 65919.2129807388. The cubic root of 4345342640 is about 1631.8291083235.

The spelling of 4345342640 in words is "four billion, three hundred forty-five million, three hundred forty-two thousand, six hundred forty".