52400446 has 16 divisors (see below), whose sum is σ = 89923680. Its totient is φ = 22433760.

The previous prime is 52400431. The next prime is 52400449. The reversal of 52400446 is 64400425.

It is a self number, because there is not a number n which added to its sum of digits gives 52400446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52400449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21540 + ... + 23848.

It is an arithmetic number, because the mean of its divisors is an integer number (5620230).

Almost surely, 2^52400446 is an apocalyptic number.

52400446 is a deficient number, since it is larger than the sum of its proper divisors (37523234).

52400446 is a wasteful number, since it uses less digits than its factorization.

52400446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 52400446 is about 7238.8152345532. The cubic root of 52400446 is about 374.2067879480.

The spelling of 52400446 in words is "fifty-two million, four hundred thousand, four hundred forty-six".