401240986 has 4 divisors (see below), whose sum is σ = 601861482. Its totient is φ = 200620492.

The previous prime is 401240977. The next prime is 401240999. The reversal of 401240986 is 689042104.

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., 401240961 + 25 = 20031^2 + 5^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100310245 + ... + 100310248.

Almost surely, 2^401240986 is an apocalyptic number.

401240986 is a deficient number, since it is larger than the sum of its proper divisors (200620496).

401240986 is a wasteful number, since it uses less digits than its factorization.

401240986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200620495.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 401240986 is about 20031.0006240327. Note that the first 3 decimals coincide. The cubic root of 401240986 is about 737.5674850053.

The spelling of 401240986 in words is "four hundred one million, two hundred forty thousand, nine hundred eighty-six".