401959582 has 4 divisors (see below), whose sum is σ = 602939376. Its totient is φ = 200979790.

The previous prime is 401959559. The next prime is 401959583. The reversal of 401959582 is 285959104.

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

It is a super-2 number, since 2×401959582² = 323143011123229448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401959583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100489894 + ... + 100489897.

It is an arithmetic number, because the mean of its divisors is an integer number (150734844).

Almost surely, 2^401959582 is an apocalyptic number.

401959582 is a deficient number, since it is larger than the sum of its proper divisors (200979794).

401959582 is a wasteful number, since it uses less digits than its factorization.

401959582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200979793.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 401959582 is about 20048.9296971185. The cubic root of 401959582 is about 738.0075338964.

The spelling of 401959582 in words is "four hundred one million, nine hundred fifty-nine thousand, five hundred eighty-two".