354220040 has 32 divisors (see below), whose sum is σ = 838944000. Its totient is φ = 134230464.

The previous prime is 354220039. The next prime is 354220073. The reversal of 354220040 is 40022453.

It is a super-3 number, since 3×354220040³ (a number of 27 digits) contains 333 as substring.

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 = 354219994 and 354220021.

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, 232280 + ... + 233799.

It is an arithmetic number, because the mean of its divisors is an integer number (26217000).

Almost surely, 2^354220040 is an apocalyptic number.

It is an amenable number.

354220040 is an abundant number, since it is smaller than the sum of its proper divisors (484723960).

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

354220040 is a wasteful number, since it uses less digits than its factorization.

354220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466109 (or 466105 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 354220040 is about 18820.7343108605. The cubic root of 354220040 is about 707.5509350803.

Adding to 354220040 its reverse (40022453), we get a palindrome (394242493).

The spelling of 354220040 in words is "three hundred fifty-four million, two hundred twenty thousand, forty".