52462140 has 48 divisors (see below), whose sum is σ = 147208992. Its totient is φ = 13959936.

The previous prime is 52462133. The next prime is 52462141. The reversal of 52462140 is 4126425.

It is a super-2 number, since 2×52462140² = 5504552266759200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52462140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52462141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52122 + ... + 53118.

It is an arithmetic number, because the mean of its divisors is an integer number (3066854).

Almost surely, 2^52462140 is an apocalyptic number.

It is an amenable number.

52462140 is an abundant number, since it is smaller than the sum of its proper divisors (94746852).

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

52462140 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (52462139) it forms an eRAP, since the sums of their prime factors are consecutive (1885 and 1886).

52462140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1884 counting only the distinct ones).

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

The square root of 52462140 is about 7243.0753137048. The cubic root of 52462140 is about 374.3535886019.

Adding to 52462140 its reverse (4126425), we get a palindrome (56588565).

The spelling of 52462140 in words is "fifty-two million, four hundred sixty-two thousand, one hundred forty".