210052420 has 24 divisors (see below), whose sum is σ = 451370304. Its totient is φ = 82066656.

The previous prime is 210052411. The next prime is 210052439. The reversal of 210052420 is 24250012.

It is a junction number, because it is equal to n+sod(n) for n = 210052394 and 210052403.

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, 121264 + ... + 122983.

It is an arithmetic number, because the mean of its divisors is an integer number (18807096).

Almost surely, 2^210052420 is an apocalyptic number.

210052420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210052420 is an abundant number, since it is smaller than the sum of its proper divisors (241317884).

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

210052420 is a wasteful number, since it uses less digits than its factorization.

210052420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244299 (or 244297 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 210052420 is about 14493.1852951654. The cubic root of 210052420 is about 594.4416483663.

The spelling of 210052420 in words is "two hundred ten million, fifty-two thousand, four hundred twenty".