1904620 has 12 divisors (see below), whose sum is σ = 3999744. Its totient is φ = 761840.

The previous prime is 1904597. The next prime is 1904621. The reversal of 1904620 is 264091.

It is a junction number, because it is equal to n+sod(n) for n = 1904591 and 1904600.

It is not an unprimeable number, because it can be changed into a prime (1904621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47596 + ... + 47635.

It is an arithmetic number, because the mean of its divisors is an integer number (333312).

2^1904620 is an apocalyptic number.

1904620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1904620 is an abundant number, since it is smaller than the sum of its proper divisors (2095124).

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

1904620 is a wasteful number, since it uses less digits than its factorization.

1904620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95240 (or 95238 counting only the distinct ones).

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

The square root of 1904620 is about 1380.0797078430. The cubic root of 1904620 is about 123.9565404412.

The spelling of 1904620 in words is "one million, nine hundred four thousand, six hundred twenty".