19242630 has 192 divisors, whose sum is σ = 61286400. Its totient is φ = 4276800.

The previous prime is 19242593. The next prime is 19242667. The reversal of 19242630 is 3624291.

19242630 is a `hidden beast` number, since 1 + 9 + 24 + 2 + 630 = 666.

It is an interprime number because it is at equal distance from previous prime (19242593) and next prime (19242667).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 19242594 and 19242603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 620715 + ... + 620745.

It is an arithmetic number, because the mean of its divisors is an integer number (319200).

Almost surely, 2^19242630 is an apocalyptic number.

19242630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19242630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30643200).

19242630 is an abundant number, since it is smaller than the sum of its proper divisors (42043770).

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

19242630 is a wasteful number, since it uses less digits than its factorization.

19242630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 19242630 is about 4386.6422238427. The cubic root of 19242630 is about 267.9712135859.

It can be divided in two parts, 1924 and 2630, that added together give a palindrome (4554).

The spelling of 19242630 in words is "nineteen million, two hundred forty-two thousand, six hundred thirty".