52226940 has 96 divisors (see below), whose sum is σ = 154699776. Its totient is φ = 13144320.

The previous prime is 52226939. The next prime is 52226947. The reversal of 52226940 is 4962225.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 52226898 and 52226907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52226947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79654 + ... + 80306.

It is an arithmetic number, because the mean of its divisors is an integer number (1611456).

Almost surely, 2^52226940 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 52226940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77349888).

52226940 is an abundant number, since it is smaller than the sum of its proper divisors (102472836).

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

52226940 is a wasteful number, since it uses less digits than its factorization.

52226940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 52226940 is about 7226.8208778134. The cubic root of 52226940 is about 373.7933123558.

The spelling of 52226940 in words is "fifty-two million, two hundred twenty-six thousand, nine hundred forty".