354138018 has 16 divisors (see below), whose sum is σ = 762758976. Its totient is φ = 108965520.

The previous prime is 354137977. The next prime is 354138019. The reversal of 354138018 is 810831453.

It is a self number, because there is not a number n which added to its sum of digits gives 354138018.

It is not an unprimeable number, because it can be changed into a prime (354138019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2270038 + ... + 2270193.

It is an arithmetic number, because the mean of its divisors is an integer number (47672436).

Almost surely, 2^354138018 is an apocalyptic number.

354138018 is an abundant number, since it is smaller than the sum of its proper divisors (408620958).

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

354138018 is a wasteful number, since it uses less digits than its factorization.

354138018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540249.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 354138018 is about 18818.5551517644. Note that the first 3 decimals coincide. The cubic root of 354138018 is about 707.4963181602.

The spelling of 354138018 in words is "three hundred fifty-four million, one hundred thirty-eight thousand, eighteen".