19429704 has 96 divisors (see below), whose sum is σ = 63336000. Its totient is φ = 5256576.

The previous prime is 19429667. The next prime is 19429717. The reversal of 19429704 is 40792491.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8562 + ... + 10590.

It is an arithmetic number, because the mean of its divisors is an integer number (659750).

Almost surely, 2^19429704 is an apocalyptic number.

19429704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19429704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31668000).

19429704 is an abundant number, since it is smaller than the sum of its proper divisors (43906296).

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

19429704 is a wasteful number, since it uses less digits than its factorization.

19429704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 19429704 is about 4407.9137922605. The cubic root of 19429704 is about 268.8368067158.

The spelling of 19429704 in words is "nineteen million, four hundred twenty-nine thousand, seven hundred four".