354941989 has 8 divisors (see below), whose sum is σ = 359623800. Its totient is φ = 350291136.

The previous prime is 354941969. The next prime is 354942037. The reversal of 354941989 is 989149453.

It can be written as a sum of positive squares in 4 ways, for example, as 35605089 + 319336900 = 5967^2 + 17870^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 354941989 - 2¹³ = 354933797 is a prime.

It is a super-2 number, since 2×354941989² = 251967631110552242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354941969) 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, 15807 + ... + 30979.

It is an arithmetic number, because the mean of its divisors is an integer number (44952975).

Almost surely, 2^354941989 is an apocalyptic number.

It is an amenable number.

354941989 is a deficient number, since it is larger than the sum of its proper divisors (4681811).

354941989 is a wasteful number, since it uses less digits than its factorization.

354941989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15479.

The product of its digits is 1399680, while the sum is 52.

The square root of 354941989 is about 18839.9041664229. The cubic root of 354941989 is about 708.0313041422.

The spelling of 354941989 in words is "three hundred fifty-four million, nine hundred forty-one thousand, nine hundred eighty-nine".