52400190 has 16 divisors (see below), whose sum is σ = 125760528. Its totient is φ = 13973376.

The previous prime is 52400189. The next prime is 52400197. The reversal of 52400190 is 9100425.

It is a super-2 number, since 2×52400190² = 5491559824072200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52400197) 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, 873307 + ... + 873366.

It is an arithmetic number, because the mean of its divisors is an integer number (7860033).

Almost surely, 2^52400190 is an apocalyptic number.

52400190 is an abundant number, since it is smaller than the sum of its proper divisors (73360338).

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

52400190 is a wasteful number, since it uses less digits than its factorization.

52400190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746683.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 52400190 is about 7238.7975520800. The cubic root of 52400190 is about 374.2061785569.

The spelling of 52400190 in words is "fifty-two million, four hundred thousand, one hundred ninety".