398244090 has 16 divisors (see below), whose sum is σ = 955785888. Its totient is φ = 106198416.

The previous prime is 398244089. The next prime is 398244157. The reversal of 398244090 is 90442893.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6637372 + ... + 6637431.

It is an arithmetic number, because the mean of its divisors is an integer number (59736618).

Almost surely, 2^398244090 is an apocalyptic number.

398244090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

398244090 is an abundant number, since it is smaller than the sum of its proper divisors (557541798).

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

398244090 is a wasteful number, since it uses less digits than its factorization.

398244090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13274813.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 398244090 is about 19956.0539686582. The cubic root of 398244090 is about 735.7265803169.

The spelling of 398244090 in words is "three hundred ninety-eight million, two hundred forty-four thousand, ninety".