345567778 has 8 divisors (see below), whose sum is σ = 540888768. Its totient is φ = 165271524.

The previous prime is 345567769. The next prime is 345567793. The reversal of 345567778 is 877765543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3756126 + ... + 3756217.

It is an arithmetic number, because the mean of its divisors is an integer number (67611096).

Almost surely, 2^345567778 is an apocalyptic number.

345567778 is a deficient number, since it is larger than the sum of its proper divisors (195320990).

345567778 is a wasteful number, since it uses less digits than its factorization.

345567778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512368.

The product of its digits is 4939200, while the sum is 52.

The square root of 345567778 is about 18589.4534077794. The cubic root of 345567778 is about 701.7424468406.

The spelling of 345567778 in words is "three hundred forty-five million, five hundred sixty-seven thousand, seven hundred seventy-eight".