343421154 has 32 divisors (see below), whose sum is σ = 763764480. Its totient is φ = 114382800.

The previous prime is 343421153. The next prime is 343421159. The reversal of 343421154 is 451124343.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (343421153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127239 + ... + 129909.

It is an arithmetic number, because the mean of its divisors is an integer number (23867640).

Almost surely, 2^343421154 is an apocalyptic number.

343421154 is an abundant number, since it is smaller than the sum of its proper divisors (420343326).

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

343421154 is a wasteful number, since it uses less digits than its factorization.

343421154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063 (or 5057 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 343421154 is about 18531.6257786520. The cubic root of 343421154 is about 700.2863821398.

Adding to 343421154 its reverse (451124343), we get a palindrome (794545497).

The spelling of 343421154 in words is "three hundred forty-three million, four hundred twenty-one thousand, one hundred fifty-four".