19418049 has 40 divisors (see below), whose sum is σ = 34615680. Its totient is φ = 10606464.

The previous prime is 19418041. The next prime is 19418071. The reversal of 19418049 is 94081491.

It is not a de Polignac number, because 19418049 - 2³ = 19418041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19418041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12297 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (865392).

Almost surely, 2^19418049 is an apocalyptic number.

It is an amenable number.

19418049 is a deficient number, since it is larger than the sum of its proper divisors (15197631).

19418049 is a wasteful number, since it uses less digits than its factorization.

19418049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 19418049 is about 4406.5915399547. The cubic root of 19418049 is about 268.7830416199.

The spelling of 19418049 in words is "nineteen million, four hundred eighteen thousand, forty-nine".