345421461 has 32 divisors (see below), whose sum is σ = 582322176. Its totient is φ = 176904000.

The previous prime is 345421423. The next prime is 345421469. The reversal of 345421461 is 164124543.

It is not a de Polignac number, because 345421461 - 2⁶ = 345421397 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345421469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5871 + ... + 26931.

It is an arithmetic number, because the mean of its divisors is an integer number (18197568).

Almost surely, 2^345421461 is an apocalyptic number.

It is an amenable number.

345421461 is a deficient number, since it is larger than the sum of its proper divisors (236900715).

345421461 is a wasteful number, since it uses less digits than its factorization.

345421461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21153.

The product of its digits is 11520, while the sum is 30.

The square root of 345421461 is about 18585.5175069192. The cubic root of 345421461 is about 701.6433911695.

The spelling of 345421461 in words is "three hundred forty-five million, four hundred twenty-one thousand, four hundred sixty-one".