396151906 has 4 divisors (see below), whose sum is σ = 594227862. Its totient is φ = 198075952.

The previous prime is 396151841. The next prime is 396151907. The reversal of 396151906 is 609151693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 241522681 + 154629225 = 15541^2 + 12435^2 .

It is not an unprimeable number, because it can be changed into a prime (396151907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99037975 + ... + 99037978.

Almost surely, 2^396151906 is an apocalyptic number.

396151906 is a deficient number, since it is larger than the sum of its proper divisors (198075956).

396151906 is a wasteful number, since it uses less digits than its factorization.

396151906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198075955.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 396151906 is about 19903.5651580314. The cubic root of 396151906 is about 734.4359323180.

The spelling of 396151906 in words is "three hundred ninety-six million, one hundred fifty-one thousand, nine hundred six".