343031420 has 24 divisors (see below), whose sum is σ = 737937648. Its totient is φ = 133865600.

The previous prime is 343031417. The next prime is 343031431. The reversal of 343031420 is 24130343.

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

It is a junction number, because it is equal to n+sod(n) for n = 343031392 and 343031401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208346 + ... + 209985.

It is an arithmetic number, because the mean of its divisors is an integer number (30747402).

Almost surely, 2^343031420 is an apocalyptic number.

It is an amenable number.

343031420 is an abundant number, since it is smaller than the sum of its proper divisors (394906228).

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

343031420 is a wasteful number, since it uses less digits than its factorization.

343031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418381 (or 418379 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 343031420 is about 18521.1074182944. The cubic root of 343031420 is about 700.0213734970.

Adding to 343031420 its reverse (24130343), we get a palindrome (367161763).

The spelling of 343031420 in words is "three hundred forty-three million, thirty-one thousand, four hundred twenty".