420245552 has 20 divisors (see below), whose sum is σ = 816119640. Its totient is φ = 209634048.

The previous prime is 420245543. The next prime is 420245561. The reversal of 420245552 is 255542024.

It is an interprime number because it is at equal distance from previous prime (420245543) and next prime (420245561).

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, 23402 + ... + 37257.

It is an arithmetic number, because the mean of its divisors is an integer number (40805982).

Almost surely, 2^420245552 is an apocalyptic number.

It is an amenable number.

420245552 is a deficient number, since it is larger than the sum of its proper divisors (395874088).

420245552 is a wasteful number, since it uses less digits than its factorization.

420245552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61100 (or 61094 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 420245552 is about 20499.8915119081. The cubic root of 420245552 is about 749.0331553360.

Adding to 420245552 its reverse (255542024), we get a palindrome (675787576).

The spelling of 420245552 in words is "four hundred twenty million, two hundred forty-five thousand, five hundred fifty-two".