401201436 has 12 divisors (see below), whose sum is σ = 936136712. Its totient is φ = 133733808.

The previous prime is 401201431. The next prime is 401201461. The reversal of 401201436 is 634102104.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401201431) 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, 16716715 + ... + 16716738.

Almost surely, 2^401201436 is an apocalyptic number.

It is an amenable number.

401201436 is an abundant number, since it is smaller than the sum of its proper divisors (534935276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401201436 is a wasteful number, since it uses less digits than its factorization.

401201436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33433460 (or 33433458 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 401201436 is about 20030.0133799256. The cubic root of 401201436 is about 737.5432503985.

The spelling of 401201436 in words is "four hundred one million, two hundred one thousand, four hundred thirty-six".