398244828 has 12 divisors (see below), whose sum is σ = 929237960. Its totient is φ = 132748272.

The previous prime is 398244827. The next prime is 398244853. The reversal of 398244828 is 828442893.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398244827) 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, 16593523 + ... + 16593546.

Almost surely, 2^398244828 is an apocalyptic number.

It is an amenable number.

398244828 is an abundant number, since it is smaller than the sum of its proper divisors (530993132).

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

398244828 is a wasteful number, since it uses less digits than its factorization.

398244828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33187076 (or 33187074 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 398244828 is about 19956.0724592792. The cubic root of 398244828 is about 735.7270347835.

The spelling of 398244828 in words is "three hundred ninety-eight million, two hundred forty-four thousand, eight hundred twenty-eight".