52100340 has 48 divisors (see below), whose sum is σ = 149446080. Its totient is φ = 13553920.

The previous prime is 52100309. The next prime is 52100341. The reversal of 52100340 is 4300125.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52100341) 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, 8130 + ... + 13049.

It is an arithmetic number, because the mean of its divisors is an integer number (3113460).

Almost surely, 2^52100340 is an apocalyptic number.

It is an amenable number.

52100340 is an abundant number, since it is smaller than the sum of its proper divisors (97345740).

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

52100340 is a wasteful number, since it uses less digits than its factorization.

52100340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21232 (or 21230 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 52100340 is about 7218.0565251320. The cubic root of 52100340 is about 373.4910384600.

Adding to 52100340 its reverse (4300125), we get a palindrome (56400465).

The spelling of 52100340 in words is "fifty-two million, one hundred thousand, three hundred forty".