396400298 has 20 divisors (see below), whose sum is σ = 693667650. Its totient is φ = 169883784.

The previous prime is 396400253. The next prime is 396400307. The reversal of 396400298 is 892004693.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 272679169 + 123721129 = 16513^2 + 11123^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36473 + ... + 46076.

Almost surely, 2^396400298 is an apocalyptic number.

396400298 is a deficient number, since it is larger than the sum of its proper divisors (297267352).

396400298 is an frugal number, since it uses more digits than its factorization.

396400298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82579 (or 82558 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 396400298 is about 19909.8040673433. The cubic root of 396400298 is about 734.5894002953.

The spelling of 396400298 in words is "three hundred ninety-six million, four hundred thousand, two hundred ninety-eight".