420385552 has 10 divisors (see below), whose sum is σ = 814497038. Its totient is φ = 210192768.

The previous prime is 420385549. The next prime is 420385577. The reversal of 420385552 is 255583024.

It can be written as a sum of positive squares in only one way, i.e., 368025856 + 52359696 = 19184^2 + 7236^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13137033 + ... + 13137064.

Almost surely, 2^420385552 is an apocalyptic number.

It is an amenable number.

420385552 is a deficient number, since it is larger than the sum of its proper divisors (394111486).

420385552 is a wasteful number, since it uses less digits than its factorization.

420385552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26274105 (or 26274099 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 420385552 is about 20503.3058797844. The cubic root of 420385552 is about 749.1163233779.

The spelling of 420385552 in words is "four hundred twenty million, three hundred eighty-five thousand, five hundred fifty-two".