19540030 has 8 divisors (see below), whose sum is σ = 35172072. Its totient is φ = 7816008.

The previous prime is 19540007. The next prime is 19540043. The reversal of 19540030 is 3004591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 19539983 and 19540010.

It is a congruent number.

It is an unprimeable number.

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, 976992 + ... + 977011.

It is an arithmetic number, because the mean of its divisors is an integer number (4396509).

Almost surely, 2^19540030 is an apocalyptic number.

19540030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19540030 is a deficient number, since it is larger than the sum of its proper divisors (15632042).

19540030 is a wasteful number, since it uses less digits than its factorization.

19540030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954010.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 19540030 is about 4420.4106144113. The cubic root of 19540030 is about 269.3446842067.

The spelling of 19540030 in words is "nineteen million, five hundred forty thousand, thirty".