354344220 has 120 divisors (see below), whose sum is σ = 1132838784. Its totient is φ = 92686464.

The previous prime is 354344219. The next prime is 354344239. The reversal of 354344220 is 22443453.

354344220 is a `hidden beast` number, since 3 + 5 + 434 + 4 + 220 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 83797 + ... + 87923.

Almost surely, 2^354344220 is an apocalyptic number.

354344220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354344220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566419392).

354344220 is an abundant number, since it is smaller than the sum of its proper divisors (778494564).

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

354344220 is a wasteful number, since it uses less digits than its factorization.

354344220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201 (or 4190 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 354344220 is about 18824.0330428949. The cubic root of 354344220 is about 707.6336081833.

Adding to 354344220 its reverse (22443453), we get a palindrome (376787673).

The spelling of 354344220 in words is "three hundred fifty-four million, three hundred forty-four thousand, two hundred twenty".