420252610 has 8 divisors (see below), whose sum is σ = 756454716. Its totient is φ = 168101040.

The previous prime is 420252593. The next prime is 420252683. The reversal of 420252610 is 16252024.

It can be written as a sum of positive squares in 2 ways, for example, as 408969729 + 11282881 = 20223^2 + 3359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×420252610² = 353224512423624200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21012621 + ... + 21012640.

Almost surely, 2^420252610 is an apocalyptic number.

420252610 is a deficient number, since it is larger than the sum of its proper divisors (336202106).

420252610 is a wasteful number, since it uses less digits than its factorization.

420252610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42025268.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 420252610 is about 20500.0636584377. The cubic root of 420252610 is about 749.0373486355.

The spelling of 420252610 in words is "four hundred twenty million, two hundred fifty-two thousand, six hundred ten".