19429494 has 16 divisors (see below), whose sum is σ = 44410368. Its totient is φ = 5551272.

The previous prime is 19429493. The next prime is 19429499. The reversal of 19429494 is 49492491.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 462607 = 19429494 / (1 + 9 + 4 + 2 + 9 + 4 + 9 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19429493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231262 + ... + 231345.

It is an arithmetic number, because the mean of its divisors is an integer number (2775648).

Almost surely, 2^19429494 is an apocalyptic number.

19429494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19429494 is an abundant number, since it is smaller than the sum of its proper divisors (24980874).

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

19429494 is a wasteful number, since it uses less digits than its factorization.

19429494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462619.

The product of its digits is 93312, while the sum is 42.

The square root of 19429494 is about 4407.8899714036. The cubic root of 19429494 is about 268.8358381656.

The spelling of 19429494 in words is "nineteen million, four hundred twenty-nine thousand, four hundred ninety-four".