421490152 has 8 divisors (see below), whose sum is σ = 790294050. Its totient is φ = 210745072.

The previous prime is 421490141. The next prime is 421490213. The reversal of 421490152 is 251094124.

It can be written as a sum of positive squares in only one way, i.e., 405377956 + 16112196 = 20134^2 + 4014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 421490152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26343127 + ... + 26343142.

Almost surely, 2^421490152 is an apocalyptic number.

It is an amenable number.

421490152 is a deficient number, since it is larger than the sum of its proper divisors (368803898).

421490152 is a wasteful number, since it uses less digits than its factorization.

421490152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52686275 (or 52686271 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 421490152 is about 20530.2253275506. The cubic root of 421490152 is about 749.7718725434.

The spelling of 421490152 in words is "four hundred twenty-one million, four hundred ninety thousand, one hundred fifty-two".