345352540 has 24 divisors (see below), whose sum is σ = 781028640. Its totient is φ = 127514688.

The previous prime is 345352523. The next prime is 345352543. The reversal of 345352540 is 45253543.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345352543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663880 + ... + 664399.

It is an arithmetic number, because the mean of its divisors is an integer number (32542860).

Almost surely, 2^345352540 is an apocalyptic number.

It is an amenable number.

345352540 is an abundant number, since it is smaller than the sum of its proper divisors (435676100).

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

345352540 is a wasteful number, since it uses less digits than its factorization.

345352540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328301 (or 1328299 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 345352540 is about 18583.6632556663. The cubic root of 345352540 is about 701.5967224027.

The spelling of 345352540 in words is "three hundred forty-five million, three hundred fifty-two thousand, five hundred forty".