401490131749 has 16 divisors (see below), whose sum is σ = 464752189440. Its totient is φ = 339711407280.

The previous prime is 401490131747. The next prime is 401490131753. The reversal of 401490131749 is 947131094104.

It is not a de Polignac number, because 401490131749 - 2¹ = 401490131747 is a prime.

It is a super-2 number, since 2×401490131749² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401490131747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434532 + ... + 995890.

It is an arithmetic number, because the mean of its divisors is an integer number (29047011840).

Almost surely, 2^401490131749 is an apocalyptic number.

It is an amenable number.

401490131749 is a deficient number, since it is larger than the sum of its proper divisors (63262057691).

401490131749 is a wasteful number, since it uses less digits than its factorization.

401490131749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562680.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 401490131749 in words is "four hundred one billion, four hundred ninety million, one hundred thirty-one thousand, seven hundred forty-nine".