19465972 has 12 divisors (see below), whose sum is σ = 34096356. Its totient is φ = 9724160.

The previous prime is 19465967. The next prime is 19465973. The reversal of 19465972 is 27956491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18011536 + 1454436 = 4244^2 + 1206^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19465973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7428 + ... + 9700.

It is an arithmetic number, because the mean of its divisors is an integer number (2841363).

Almost surely, 2^19465972 is an apocalyptic number.

It is an amenable number.

19465972 is a deficient number, since it is larger than the sum of its proper divisors (14630384).

19465972 is a wasteful number, since it uses less digits than its factorization.

19465972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418 (or 4416 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 19465972 is about 4412.0258385463. The cubic root of 19465972 is about 269.0039753792.

It can be divided in two parts, 194 and 65972, that added together give a palindrome (66166).

The spelling of 19465972 in words is "nineteen million, four hundred sixty-five thousand, nine hundred seventy-two".