421122544 has 10 divisors (see below), whose sum is σ = 815924960. Its totient is φ = 210561264.

The previous prime is 421122509. The next prime is 421122547. The reversal of 421122544 is 445221124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421122547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13160064 + ... + 13160095.

It is an arithmetic number, because the mean of its divisors is an integer number (81592496).

Almost surely, 2^421122544 is an apocalyptic number.

It is an amenable number.

421122544 is a deficient number, since it is larger than the sum of its proper divisors (394802416).

421122544 is a wasteful number, since it uses less digits than its factorization.

421122544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26320167 (or 26320161 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 421122544 is about 20521.2705259689. The cubic root of 421122544 is about 749.5538347829.

Adding to 421122544 its reverse (445221124), we get a palindrome (866343668).

The spelling of 421122544 in words is "four hundred twenty-one million, one hundred twenty-two thousand, five hundred forty-four".