420253510 has 8 divisors (see below), whose sum is σ = 756456336. Its totient is φ = 168101400.

The previous prime is 420253507. The next prime is 420253513. The reversal of 420253510 is 15352024.

It is an interprime number because it is at equal distance from previous prime (420253507) and next prime (420253513).

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

It is a super-2 number, since 2×420253510² = 353226025334640200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420253513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21012666 + ... + 21012685.

It is an arithmetic number, because the mean of its divisors is an integer number (94557042).

Almost surely, 2^420253510 is an apocalyptic number.

420253510 is a deficient number, since it is larger than the sum of its proper divisors (336202826).

420253510 is a wasteful number, since it uses less digits than its factorization.

420253510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42025358.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 420253510 is about 20500.0856095773. The cubic root of 420253510 is about 749.0378833402.

The spelling of 420253510 in words is "four hundred twenty million, two hundred fifty-three thousand, five hundred ten".