401436064 has 12 divisors (see below), whose sum is σ = 790327314. Its totient is φ = 200718016.

The previous prime is 401436053. The next prime is 401436121. The reversal of 401436064 is 460634104.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 396328464 + 5107600 = 19908^2 + 2260^2 .

It is a super-2 number, since 2×401436064² = 322301826959624192, which contains 22 as substring.

It is an unprimeable number.

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, 6272407 + ... + 6272470.

Almost surely, 2^401436064 is an apocalyptic number.

It is an amenable number.

401436064 is a deficient number, since it is larger than the sum of its proper divisors (388891250).

401436064 is a wasteful number, since it uses less digits than its factorization.

401436064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12544887 (or 12544879 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 401436064 is about 20035.8694345916. The cubic root of 401436064 is about 737.6869974539.

The spelling of 401436064 in words is "four hundred one million, four hundred thirty-six thousand, sixty-four".