343421925 has 48 divisors (see below), whose sum is σ = 707907072. Its totient is φ = 142718400.

The previous prime is 343421921. The next prime is 343421963. The reversal of 343421925 is 529124343.

It is not a de Polignac number, because 343421925 - 2² = 343421921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343421921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23959 + ... + 35508.

It is an arithmetic number, because the mean of its divisors is an integer number (14748064).

Almost surely, 2^343421925 is an apocalyptic number.

343421925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

343421925 is an abundant number, since it is smaller than the sum of its proper divisors (364485147).

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

343421925 is a wasteful number, since it uses less digits than its factorization.

343421925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59498 (or 59493 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 343421925 is about 18531.6465809167. The cubic root of 343421925 is about 700.2869062004.

The spelling of 343421925 in words is "three hundred forty-three million, four hundred twenty-one thousand, nine hundred twenty-five".