19040620 has 24 divisors (see below), whose sum is σ = 40076064. Its totient is φ = 7598976.

The previous prime is 19040611. The next prime is 19040639. The reversal of 19040620 is 2604091.

It is a junction number, because it is equal to n+sod(n) for n = 19040591 and 19040600.

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, 11569 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (1669836).

Almost surely, 2^19040620 is an apocalyptic number.

19040620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19040620 is an abundant number, since it is smaller than the sum of its proper divisors (21035444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19040620 is a wasteful number, since it uses less digits than its factorization.

19040620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 19040620 is about 4363.5558894095. Note that the first 3 decimals coincide. The cubic root of 19040620 is about 267.0301882478.

The spelling of 19040620 in words is "nineteen million, forty thousand, six hundred twenty".