345421100 has 36 divisors (see below), whose sum is σ = 758612904. Its totient is φ = 136500480.

The previous prime is 345421099. The next prime is 345421151. The reversal of 345421100 is 1124543.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12509 + ... + 29108.

Almost surely, 2^345421100 is an apocalyptic number.

It is an amenable number.

345421100 is an abundant number, since it is smaller than the sum of its proper divisors (413191804).

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

345421100 is a wasteful number, since it uses less digits than its factorization.

345421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41714 (or 41707 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 345421100 is about 18585.5077950537. The cubic root of 345421100 is about 701.6431467402.

Adding to 345421100 its reverse (1124543), we get a palindrome (346545643).

The spelling of 345421100 in words is "three hundred forty-five million, four hundred twenty-one thousand, one hundred".