401335136 has 12 divisors (see below), whose sum is σ = 790128612. Its totient is φ = 200667552.

The previous prime is 401335091. The next prime is 401335139. The reversal of 401335136 is 631533104.

It is a super-2 number, since 2×401335136² = 322139782776276992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401335139) 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 as a sum of consecutive naturals, namely, 6270830 + ... + 6270893.

It is an arithmetic number, because the mean of its divisors is an integer number (65844051).

Almost surely, 2^401335136 is an apocalyptic number.

It is an amenable number.

401335136 is a deficient number, since it is larger than the sum of its proper divisors (388793476).

401335136 is a wasteful number, since it uses less digits than its factorization.

401335136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12541733 (or 12541725 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 401335136 is about 20033.3505934479. The cubic root of 401335136 is about 737.6251698301.

The spelling of 401335136 in words is "four hundred one million, three hundred thirty-five thousand, one hundred thirty-six".