420102152 has 16 divisors (see below), whose sum is σ = 798482940. Its totient is φ = 207173376.

The previous prime is 420102077. The next prime is 420102169. The reversal of 420102152 is 251201024.

It can be written as a sum of positive squares in 2 ways, for example, as 409900516 + 10201636 = 20246^2 + 3194^2 .

It is a super-2 number, since 2×420102152² = 352971636230062208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420102152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359093 + ... + 360260.

Almost surely, 2^420102152 is an apocalyptic number.

It is an amenable number.

420102152 is a deficient number, since it is larger than the sum of its proper divisors (378380788).

420102152 is a wasteful number, since it uses less digits than its factorization.

420102152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719432 (or 719428 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 420102152 is about 20496.3936340030. The cubic root of 420102152 is about 748.9479483472.

Adding to 420102152 its reverse (251201024), we get a palindrome (671303176).

The spelling of 420102152 in words is "four hundred twenty million, one hundred two thousand, one hundred fifty-two".