52404420 has 24 divisors (see below), whose sum is σ = 146732544. Its totient is φ = 13974496.

The previous prime is 52404409. The next prime is 52404431. The reversal of 52404420 is 2440425.

It is an interprime number because it is at equal distance from previous prime (52404409) and next prime (52404431).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436644 + ... + 436763.

It is an arithmetic number, because the mean of its divisors is an integer number (6113856).

Almost surely, 2^52404420 is an apocalyptic number.

It is an amenable number.

52404420 is an abundant number, since it is smaller than the sum of its proper divisors (94328124).

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

52404420 is a wasteful number, since it uses less digits than its factorization.

52404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873419 (or 873417 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 52404420 is about 7239.0897217813. The cubic root of 52404420 is about 374.2162475378.

Adding to 52404420 its reverse (2440425), we get a palindrome (54844845).

The spelling of 52404420 in words is "fifty-two million, four hundred four thousand, four hundred twenty".