52394440 has 32 divisors (see below), whose sum is σ = 134729280. Its totient is φ = 17963712.

The previous prime is 52394431. The next prime is 52394449. The reversal of 52394440 is 4449325.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52394431) and next prime (52394449).

It is not an unprimeable number, because it can be changed into a prime (52394449) 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, 93282 + ... + 93841.

It is an arithmetic number, because the mean of its divisors is an integer number (4210290).

Almost surely, 2^52394440 is an apocalyptic number.

It is an amenable number.

52394440 is an abundant number, since it is smaller than the sum of its proper divisors (82334840).

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

52394440 is a wasteful number, since it uses less digits than its factorization.

52394440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187141 (or 187137 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 52394440 is about 7238.4003757736. The cubic root of 52394440 is about 374.1924905389.

The spelling of 52394440 in words is "fifty-two million, three hundred ninety-four thousand, four hundred forty".