19402948 has 12 divisors (see below), whose sum is σ = 34873132. Its totient is φ = 9439200.

The previous prime is 19402921. The next prime is 19402949. The reversal of 19402948 is 84920491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13410244 + 5992704 = 3662^2 + 2448^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (19402949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65403 + ... + 65698.

Almost surely, 2^19402948 is an apocalyptic number.

It is an amenable number.

19402948 is a deficient number, since it is larger than the sum of its proper divisors (15470184).

19402948 is a wasteful number, since it uses less digits than its factorization.

19402948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131142 (or 131140 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 19402948 is about 4404.8777508576. The cubic root of 19402948 is about 268.7133479492.

The spelling of 19402948 in words is "nineteen million, four hundred two thousand, nine hundred forty-eight".