345573740 has 24 divisors (see below), whose sum is σ = 749116032. Its totient is φ = 133770240.

The previous prime is 345573733. The next prime is 345573743. The reversal of 345573740 is 47375543.

It is a junction number, because it is equal to n+sod(n) for n = 345573694 and 345573703.

It is not an unprimeable number, because it can be changed into a prime (345573743) 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, 278069 + ... + 279308.

It is an arithmetic number, because the mean of its divisors is an integer number (31213168).

Almost surely, 2^345573740 is an apocalyptic number.

It is an amenable number.

345573740 is an abundant number, since it is smaller than the sum of its proper divisors (403542292).

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

345573740 is a wasteful number, since it uses less digits than its factorization.

345573740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557417 (or 557415 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 38.

The square root of 345573740 is about 18589.6137668323. The cubic root of 345573740 is about 701.7464824834.

The spelling of 345573740 in words is "three hundred forty-five million, five hundred seventy-three thousand, seven hundred forty".