400827824 has 10 divisors (see below), whose sum is σ = 776603940. Its totient is φ = 200413904.

The previous prime is 400827793. The next prime is 400827859. The reversal of 400827824 is 428728004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12525854 + ... + 12525885.

It is an arithmetic number, because the mean of its divisors is an integer number (77660394).

Almost surely, 2^400827824 is an apocalyptic number.

It is an amenable number.

400827824 is a deficient number, since it is larger than the sum of its proper divisors (375776116).

400827824 is a wasteful number, since it uses less digits than its factorization.

400827824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25051747 (or 25051741 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 400827824 is about 20020.6849033693. The cubic root of 400827824 is about 737.3142377682.

The spelling of 400827824 in words is "four hundred million, eight hundred twenty-seven thousand, eight hundred twenty-four".