19872034 has 48 divisors (see below), whose sum is σ = 38052288. Its totient is φ = 7615296.

The previous prime is 19872019. The next prime is 19872037. The reversal of 19872034 is 43027891.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19872037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87429 + ... + 87655.

It is an arithmetic number, because the mean of its divisors is an integer number (792756).

Almost surely, 2^19872034 is an apocalyptic number.

19872034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19872034 is a deficient number, since it is larger than the sum of its proper divisors (18180254).

19872034 is a wasteful number, since it uses less digits than its factorization.

19872034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 19872034 is about 4457.8059625785. The cubic root of 19872034 is about 270.8616006052.

It can be divided in two parts, 19 and 872034, that multiplied together give a triangular number (16568646 = T₅₇₅₆).

The spelling of 19872034 in words is "nineteen million, eight hundred seventy-two thousand, thirty-four".