401446622273640 has 128 divisors (see below), whose sum is σ = 1205632050624000. Its totient is φ = 106937598187520.

The previous prime is 401446622273509. The next prime is 401446622273657. The reversal of 401446622273640 is 46372226644104.

It is a super-2 number, since 2×401446622273640² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 995822836 + ... + 996225884.

It is an arithmetic number, because the mean of its divisors is an integer number (9419000395500).

Almost surely, 2^{401446622273640} is an apocalyptic number.

401446622273640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401446622273640 is an abundant number, since it is smaller than the sum of its proper divisors (804185428350360).

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

401446622273640 is a wasteful number, since it uses less digits than its factorization.

401446622273640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411947 (or 411943 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 51.

The spelling of 401446622273640 in words is "four hundred one trillion, four hundred forty-six billion, six hundred twenty-two million, two hundred seventy-three thousand, six hundred forty".