52698240 has 192 divisors, whose sum is σ = 208128960. Its totient is φ = 12036096.

The previous prime is 52698227. The next prime is 52698241. The reversal of 52698240 is 4289625.

It is a happy number.

52698240 is a `hidden beast` number, since 526 + 98 + 2 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52698195 and 52698204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52698241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39667 + ... + 40973.

It is an arithmetic number, because the mean of its divisors is an integer number (1084005).

Almost surely, 2^52698240 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 52698240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104064480).

52698240 is an abundant number, since it is smaller than the sum of its proper divisors (155430720).

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

52698240 is a wasteful number, since it uses less digits than its factorization.

52698240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 52698240 is about 7259.3553432795. The cubic root of 52698240 is about 374.9143270952.

The spelling of 52698240 in words is "fifty-two million, six hundred ninety-eight thousand, two hundred forty".