421415532 has 18 divisors (see below), whose sum is σ = 1065244908. Its totient is φ = 140471832.

The previous prime is 421415521. The next prime is 421415543. The reversal of 421415532 is 235514124.

It is an interprime number because it is at equal distance from previous prime (421415521) and next prime (421415543).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×421415532² = 355182101221686048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421415496 and 421415505.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5852958 + ... + 5853029.

Almost surely, 2^421415532 is an apocalyptic number.

It is an amenable number.

421415532 is an abundant number, since it is smaller than the sum of its proper divisors (643829376).

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

421415532 is a wasteful number, since it uses less digits than its factorization.

421415532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11705997 (or 11705992 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 421415532 is about 20528.4079265782. The cubic root of 421415532 is about 749.7276237602.

Adding to 421415532 its reverse (235514124), we get a palindrome (656929656).

The spelling of 421415532 in words is "four hundred twenty-one million, four hundred fifteen thousand, five hundred thirty-two".