401947274 has 8 divisors (see below), whose sum is σ = 603008388. Its totient is φ = 200944480.

The previous prime is 401947267. The next prime is 401947277. The reversal of 401947274 is 472749104.

It can be written as a sum of positive squares in 2 ways, for example, as 285846649 + 116100625 = 16907^2 + 10775^2 .

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

It is a super-2 number, since 2×401947274² = 323123222152062152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401947277) by changing a digit.

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, 13364 + ... + 31344.

Almost surely, 2^401947274 is an apocalyptic number.

401947274 is a deficient number, since it is larger than the sum of its proper divisors (201061114).

401947274 is a wasteful number, since it uses less digits than its factorization.

401947274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29160.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 401947274 is about 20048.6227457150. The cubic root of 401947274 is about 738.0000012240. Note that the first 5 decimals are identical.

The spelling of 401947274 in words is "four hundred one million, nine hundred forty-seven thousand, two hundred seventy-four".