400403336740 has 96 divisors (see below), whose sum is σ = 922244714496. Its totient is φ = 144816339840.

The previous prime is 400403336737. The next prime is 400403336779. The reversal of 400403336740 is 47633304004.

It is a junction number, because it is equal to n+sod(n) for n = 400403336696 and 400403336705.

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 31 ways as a sum of consecutive naturals, for example, 35046669 + ... + 35058091.

It is an arithmetic number, because the mean of its divisors is an integer number (9606715776).

Almost surely, 2^400403336740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400403336740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461122357248).

400403336740 is an abundant number, since it is smaller than the sum of its proper divisors (521841377756).

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

400403336740 is a wasteful number, since it uses less digits than its factorization.

400403336740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12289 (or 12287 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 34.

The spelling of 400403336740 in words is "four hundred billion, four hundred three million, three hundred thirty-six thousand, seven hundred forty".