19929234 has 16 divisors (see below), whose sum is σ = 42924672. Its totient is φ = 6132048.

The previous prime is 19929223. The next prime is 19929277. The reversal of 19929234 is 43292991.

It is a super-5 number, since 5×19929234⁵ (a number of 38 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 19929192 and 19929201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127674 + ... + 127829.

It is an arithmetic number, because the mean of its divisors is an integer number (2682792).

Almost surely, 2^19929234 is an apocalyptic number.

19929234 is an abundant number, since it is smaller than the sum of its proper divisors (22995438).

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

19929234 is a wasteful number, since it uses less digits than its factorization.

19929234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255521.

The product of its digits is 34992, while the sum is 39.

The square root of 19929234 is about 4464.2170646150. The cubic root of 19929234 is about 271.1212358611.

The spelling of 19929234 in words is "nineteen million, nine hundred twenty-nine thousand, two hundred thirty-four".