401328654040 has 16 divisors (see below), whose sum is σ = 902989471680. Its totient is φ = 160531461600.

The previous prime is 401328654029. The next prime is 401328654101. The reversal of 401328654040 is 40456823104.

It is a super-2 number, since 2×401328654040² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5016608136 + ... + 5016608215.

It is an arithmetic number, because the mean of its divisors is an integer number (56436841980).

Almost surely, 2^401328654040 is an apocalyptic number.

401328654040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401328654040 is an abundant number, since it is smaller than the sum of its proper divisors (501660817640).

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

401328654040 is a wasteful number, since it uses less digits than its factorization.

401328654040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10033216362 (or 10033216358 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 401328654040 in words is "four hundred one billion, three hundred twenty-eight million, six hundred fifty-four thousand, forty".