19790034 has 24 divisors (see below), whose sum is σ = 43506960. Its totient is φ = 5996760.

The previous prime is 19790033. The next prime is 19790063. The reversal of 19790034 is 43009791.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 19789977 and 19790004.

It is not an unprimeable number, because it can be changed into a prime (19790033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12904 + ... + 14355.

It is an arithmetic number, because the mean of its divisors is an integer number (1812790).

Almost surely, 2^19790034 is an apocalyptic number.

19790034 is an abundant number, since it is smaller than the sum of its proper divisors (23716926).

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

19790034 is a wasteful number, since it uses less digits than its factorization.

19790034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27286 (or 27275 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 19790034 is about 4448.5991053364. The cubic root of 19790034 is about 270.4885257016.

The spelling of 19790034 in words is "nineteen million, seven hundred ninety thousand, thirty-four".