19948630 has 32 divisors (see below), whose sum is σ = 38937024. Its totient is φ = 7314816.

The previous prime is 19948627. The next prime is 19948639. The reversal of 19948630 is 3684991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19948639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22047 + ... + 22933.

It is an arithmetic number, because the mean of its divisors is an integer number (1216782).

Almost surely, 2^19948630 is an apocalyptic number.

19948630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19948630 is a deficient number, since it is larger than the sum of its proper divisors (18988394).

19948630 is a wasteful number, since it uses less digits than its factorization.

19948630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 19948630 is about 4466.3889217129. The cubic root of 19948630 is about 271.2091630142.

The spelling of 19948630 in words is "nineteen million, nine hundred forty-eight thousand, six hundred thirty".