401533506335740 has 96 divisors (see below), whose sum is σ = 848451660263424. Its totient is φ = 159621021926400.

The previous prime is 401533506335723. The next prime is 401533506335743. The reversal of 401533506335740 is 47533605335104.

It is a super-2 number, since 2×401533506335740² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401533506335743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2367908437 + ... + 2368078003.

It is an arithmetic number, because the mean of its divisors is an integer number (8838038127744).

Almost surely, 2^{401533506335740} is an apocalyptic number.

It is an amenable number.

401533506335740 is an abundant number, since it is smaller than the sum of its proper divisors (446918153927684).

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

401533506335740 is a wasteful number, since it uses less digits than its factorization.

401533506335740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171067 (or 171065 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 49.

The spelling of 401533506335740 in words is "four hundred one trillion, five hundred thirty-three billion, five hundred six million, three hundred thirty-five thousand, seven hundred forty".