19440124 has 24 divisors (see below), whose sum is σ = 37333296. Its totient is φ = 8784000.

The previous prime is 19440103. The next prime is 19440139. The reversal of 19440124 is 42104491.

It is a super-2 number, since 2×19440124² = 755836842270752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 6744 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (1555554).

Almost surely, 2^19440124 is an apocalyptic number.

It is an amenable number.

19440124 is a deficient number, since it is larger than the sum of its proper divisors (17893172).

19440124 is a wasteful number, since it uses less digits than its factorization.

19440124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637 (or 2635 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 19440124 is about 4409.0955988729. The cubic root of 19440124 is about 268.8848564941.

The spelling of 19440124 in words is "nineteen million, four hundred forty thousand, one hundred twenty-four".