396730398 has 8 divisors (see below), whose sum is σ = 793460808. Its totient is φ = 132243464.

The previous prime is 396730361. The next prime is 396730417. The reversal of 396730398 is 893037693.

It is a happy number.

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

396730398 is an admirable number.

It is a super-3 number, since 3×396730398³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33060861 + ... + 33060872.

It is an arithmetic number, because the mean of its divisors is an integer number (99182601).

Almost surely, 2^396730398 is an apocalyptic number.

396730398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

396730398 is a wasteful number, since it uses less digits than its factorization.

396730398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66121738.

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 396730398 is about 19918.0922279218. The cubic root of 396730398 is about 734.7932520442.

The spelling of 396730398 in words is "three hundred ninety-six million, seven hundred thirty thousand, three hundred ninety-eight".