345030780 has 48 divisors (see below), whose sum is σ = 974967840. Its totient is φ = 91162368.

The previous prime is 345030773. The next prime is 345030799. The reversal of 345030780 is 87030543.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19839 + ... + 32918.

It is an arithmetic number, because the mean of its divisors is an integer number (20311830).

Almost surely, 2^345030780 is an apocalyptic number.

345030780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345030780 is an abundant number, since it is smaller than the sum of its proper divisors (629937060).

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

345030780 is a wasteful number, since it uses less digits than its factorization.

345030780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52878 (or 52876 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 345030780 is about 18575.0041722741. The cubic root of 345030780 is about 701.3787655040.

The spelling of 345030780 in words is "three hundred forty-five million, thirty thousand, seven hundred eighty".