421545092 has 12 divisors (see below), whose sum is σ = 738012240. Its totient is φ = 210684456.

The previous prime is 421545053. The next prime is 421545109. The reversal of 421545092 is 290545124.

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, 10598 + ... + 30909.

It is an arithmetic number, because the mean of its divisors is an integer number (61501020).

Almost surely, 2^421545092 is an apocalyptic number.

It is an amenable number.

421545092 is a deficient number, since it is larger than the sum of its proper divisors (316467148).

421545092 is a wasteful number, since it uses less digits than its factorization.

421545092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44050 (or 44048 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 421545092 is about 20531.5633111558. The cubic root of 421545092 is about 749.8044479799.

Adding to 421545092 its sum of digits (32), we get a palindrome (421545124).

The spelling of 421545092 in words is "four hundred twenty-one million, five hundred forty-five thousand, ninety-two".