1948649046 has 16 divisors (see below), whose sum is σ = 3980219904. Its totient is φ = 635729384.

The previous prime is 1948649029. The next prime is 1948649047. The reversal of 1948649046 is 6409468491.

It is a self number, because there is not a number n which added to its sum of digits gives 1948649046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948649047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3454770 + ... + 3455333.

It is an arithmetic number, because the mean of its divisors is an integer number (248763744).

Almost surely, 2^1948649046 is an apocalyptic number.

1948649046 is an abundant number, since it is smaller than the sum of its proper divisors (2031570858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1948649046 is a wasteful number, since it uses less digits than its factorization.

1948649046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6910155.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 1948649046 is about 44143.5051394880. The cubic root of 1948649046 is about 1249.0443994616.

The spelling of 1948649046 in words is "one billion, nine hundred forty-eight million, six hundred forty-nine thousand, forty-six".