355489990 has 8 divisors (see below), whose sum is σ = 639882000. Its totient is φ = 142195992.

The previous prime is 355489963. The next prime is 355489991. The reversal of 355489990 is 99984553.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355489991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17774490 + ... + 17774509.

It is an arithmetic number, because the mean of its divisors is an integer number (79985250).

Almost surely, 2^355489990 is an apocalyptic number.

355489990 is a deficient number, since it is larger than the sum of its proper divisors (284392010).

355489990 is a wasteful number, since it uses less digits than its factorization.

355489990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35549006.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The square root of 355489990 is about 18854.4421821490. The cubic root of 355489990 is about 708.3954973201.

The spelling of 355489990 in words is "three hundred fifty-five million, four hundred eighty-nine thousand, nine hundred ninety".