345127280 has 40 divisors (see below), whose sum is σ = 812104272. Its totient is φ = 136385024.

The previous prime is 345127271. The next prime is 345127297. The reversal of 345127280 is 82721543.

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

It is a super-2 number, since 2×345127280² = 238225678800396800, which contains 22 as substring.

It is a congruent number.

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, 19349 + ... + 32628.

Almost surely, 2^345127280 is an apocalyptic number.

It is an amenable number.

345127280 is an abundant number, since it is smaller than the sum of its proper divisors (466976992).

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

345127280 is a wasteful number, since it uses less digits than its factorization.

345127280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52073 (or 52067 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 345127280 is about 18577.6015674790. The cubic root of 345127280 is about 701.4441478272. Note that the first 3 decimals are identical.

The spelling of 345127280 in words is "three hundred forty-five million, one hundred twenty-seven thousand, two hundred eighty".