781448048 has 10 divisors (see below), whose sum is σ = 1514055624. Its totient is φ = 390724016.

The previous prime is 781448039. The next prime is 781448077. The reversal of 781448048 is 840844187.

It is a super-2 number, since 2×781448048² = 1221322103446020608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24420236 + ... + 24420267.

Almost surely, 2^781448048 is an apocalyptic number.

It is an amenable number.

781448048 is a deficient number, since it is larger than the sum of its proper divisors (732607576).

781448048 is a wasteful number, since it uses less digits than its factorization.

781448048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48840511 (or 48840505 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 44.

The square root of 781448048 is about 27954.3922845767. The cubic root of 781448048 is about 921.0856936922.

The spelling of 781448048 in words is "seven hundred eighty-one million, four hundred forty-eight thousand, forty-eight".