355493490 has 64 divisors (see below), whose sum is σ = 934346880. Its totient is φ = 85847040.

The previous prime is 355493441. The next prime is 355493507. The reversal of 355493490 is 94394553.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89466 + ... + 93354.

It is an arithmetic number, because the mean of its divisors is an integer number (14599170).

Almost surely, 2^355493490 is an apocalyptic number.

355493490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 355493490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467173440).

355493490 is an abundant number, since it is smaller than the sum of its proper divisors (578853390).

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

355493490 is a wasteful number, since it uses less digits than its factorization.

355493490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187.

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 355493490 is about 18854.5349982438. The cubic root of 355493490 is about 708.3978221639.

The spelling of 355493490 in words is "three hundred fifty-five million, four hundred ninety-three thousand, four hundred ninety".