396072746 has 8 divisors (see below), whose sum is σ = 625378080. Its totient is φ = 187613388.

The previous prime is 396072701. The next prime is 396072769. The reversal of 396072746 is 647270693.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 396072697 and 396072706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5211446 + ... + 5211521.

It is an arithmetic number, because the mean of its divisors is an integer number (78172260).

Almost surely, 2^396072746 is an apocalyptic number.

396072746 is a deficient number, since it is larger than the sum of its proper divisors (229305334).

396072746 is a wasteful number, since it uses less digits than its factorization.

396072746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422988.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 396072746 is about 19901.5764702196. The cubic root of 396072746 is about 734.3870101576.

The spelling of 396072746 in words is "three hundred ninety-six million, seventy-two thousand, seven hundred forty-six".