345448020 has 24 divisors (see below), whose sum is σ = 967254624. Its totient is φ = 92119456.

The previous prime is 345448013. The next prime is 345448027. The reversal of 345448020 is 20844543.

It is an interprime number because it is at equal distance from previous prime (345448013) and next prime (345448027).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345448027) 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, 2878674 + ... + 2878793.

It is an arithmetic number, because the mean of its divisors is an integer number (40302276).

Almost surely, 2^345448020 is an apocalyptic number.

345448020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345448020 is an abundant number, since it is smaller than the sum of its proper divisors (621806604).

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

345448020 is a wasteful number, since it uses less digits than its factorization.

345448020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5757479 (or 5757477 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 345448020 is about 18586.2320011346. The cubic root of 345448020 is about 701.6613735199.

The spelling of 345448020 in words is "three hundred forty-five million, four hundred forty-eight thousand, twenty".