420251052 has 24 divisors (see below), whose sum is σ = 1056015856. Its totient is φ = 129307968.

The previous prime is 420251047. The next prime is 420251077. The reversal of 420251052 is 250152024.

It is a happy number.

It is a super-2 number, since 2×420251052² = 353221893414213408, which contains 22 as substring.

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, 1346803 + ... + 1347114.

Almost surely, 2^420251052 is an apocalyptic number.

It is an amenable number.

420251052 is an abundant number, since it is smaller than the sum of its proper divisors (635764804).

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

420251052 is a wasteful number, since it uses less digits than its factorization.

420251052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693937 (or 2693935 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 420251052 is about 20500.0256585205. The cubic root of 420251052 is about 749.0364230004.

The spelling of 420251052 in words is "four hundred twenty million, two hundred fifty-one thousand, fifty-two".