19440117 has 24 divisors (see below), whose sum is σ = 28867904. Its totient is φ = 12602304.

The previous prime is 19440103. The next prime is 19440139. The reversal of 19440117 is 71104491.

It is not a de Polignac number, because 19440117 - 2⁴ = 19440101 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19440167) 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, 61953 + ... + 62265.

Almost surely, 2^19440117 is an apocalyptic number.

It is an amenable number.

19440117 is a deficient number, since it is larger than the sum of its proper divisors (9427787).

19440117 is a wasteful number, since it uses less digits than its factorization.

19440117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 19440117 is about 4409.0948050592. The cubic root of 19440117 is about 268.8848242207.

The spelling of 19440117 in words is "nineteen million, four hundred forty thousand, one hundred seventeen".