354143420 has 48 divisors (see below), whose sum is σ = 780252480. Its totient is φ = 134762496.

The previous prime is 354143407. The next prime is 354143431. The reversal of 354143420 is 24341453.

It is a self number, because there is not a number n which added to its sum of digits gives 354143420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86786 + ... + 90774.

It is an arithmetic number, because the mean of its divisors is an integer number (16255260).

Almost surely, 2^354143420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354143420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390126240).

354143420 is an abundant number, since it is smaller than the sum of its proper divisors (426109060).

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

354143420 is a wasteful number, since it uses less digits than its factorization.

354143420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214 (or 4212 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 354143420 is about 18818.6986797706. The cubic root of 354143420 is about 707.4999155107.

Adding to 354143420 its reverse (24341453), we get a palindrome (378484873).

The spelling of 354143420 in words is "three hundred fifty-four million, one hundred forty-three thousand, four hundred twenty".