19057969 has 16 divisors (see below), whose sum is σ = 24278400. Its totient is φ = 14563584.

The previous prime is 19057967. The next prime is 19057981. The reversal of 19057969 is 96975091.

It is not a de Polignac number, because 19057969 - 2¹ = 19057967 is a prime.

It is a super-2 number, since 2×19057969² = 726412364809922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19057967) 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 15 ways as a sum of consecutive naturals, for example, 1954 + ... + 6475.

It is an arithmetic number, because the mean of its divisors is an integer number (1517400).

Almost surely, 2^19057969 is an apocalyptic number.

19057969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19057969 is a deficient number, since it is larger than the sum of its proper divisors (5220431).

19057969 is a wasteful number, since it uses less digits than its factorization.

19057969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8472.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 19057969 is about 4365.5433796951. The cubic root of 19057969 is about 267.1112657969. Note that the first 3 decimals are identical.

The spelling of 19057969 in words is "nineteen million, fifty-seven thousand, nine hundred sixty-nine".