19948264 has 16 divisors (see below), whose sum is σ = 42746400. Its totient is φ = 8549232.

The previous prime is 19948261. The next prime is 19948267. The reversal of 19948264 is 46284991.

It is an interprime number because it is at equal distance from previous prime (19948261) and next prime (19948267).

It is a super-2 number, since 2×19948264² = 795866473227392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19948264.

It is not an unprimeable number, because it can be changed into a prime (19948261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178054 + ... + 178165.

It is an arithmetic number, because the mean of its divisors is an integer number (2671650).

Almost surely, 2^19948264 is an apocalyptic number.

19948264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19948264 is an abundant number, since it is smaller than the sum of its proper divisors (22798136).

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

19948264 is a wasteful number, since it uses less digits than its factorization.

19948264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356232 (or 356228 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 19948264 is about 4466.3479488280. The cubic root of 19948264 is about 271.2075043680.

The spelling of 19948264 in words is "nineteen million, nine hundred forty-eight thousand, two hundred sixty-four".