52400238 has 32 divisors (see below), whose sum is σ = 114860160. Its totient is φ = 15804960.

The previous prime is 52400219. The next prime is 52400267. The reversal of 52400238 is 83200425.

It is a super-3 number, since 3×52400238³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13381 + ... + 16847.

It is an arithmetic number, because the mean of its divisors is an integer number (3589380).

Almost surely, 2^52400238 is an apocalyptic number.

52400238 is an abundant number, since it is smaller than the sum of its proper divisors (62459922).

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

52400238 is a wasteful number, since it uses less digits than its factorization.

52400238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 52400238 is about 7238.8008675471. The cubic root of 52400238 is about 374.2062928179.

The spelling of 52400238 in words is "fifty-two million, four hundred thousand, two hundred thirty-eight".