1899054 has 12 divisors (see below), whose sum is σ = 4114656. Its totient is φ = 633012.

The previous prime is 1899049. The next prime is 1899059. The reversal of 1899054 is 4509981.

It is an interprime number because it is at equal distance from previous prime (1899049) and next prime (1899059).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1899059) 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 5 ways as a sum of consecutive naturals, for example, 52734 + ... + 52769.

It is an arithmetic number, because the mean of its divisors is an integer number (342888).

2^1899054 is an apocalyptic number.

1899054 is an abundant number, since it is smaller than the sum of its proper divisors (2215602).

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

1899054 is a wasteful number, since it uses less digits than its factorization.

1899054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105511 (or 105508 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1899054 is about 1378.0616822189. The cubic root of 1899054 is about 123.8356737617.

It can be divided in two parts, 18990 and 54, that added together give a square (19044 = 138²).

The spelling of 1899054 in words is "one million, eight hundred ninety-nine thousand, fifty-four".