1954530 has 80 divisors (see below), whose sum is σ = 5575680. Its totient is φ = 489888.

The previous prime is 1954523. The next prime is 1954531. The reversal of 1954530 is 354591.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1954494 and 1954503.

It is not an unprimeable number, because it can be changed into a prime (1954531) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15327 + ... + 15453.

It is an arithmetic number, because the mean of its divisors is an integer number (69696).

2^1954530 is an apocalyptic number.

1954530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1954530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2787840).

1954530 is an abundant number, since it is smaller than the sum of its proper divisors (3621150).

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

1954530 is a wasteful number, since it uses less digits than its factorization.

1954530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1954530 is about 1398.0450636514. The cubic root of 1954530 is about 125.0299661490.

1954530 divided by its sum of digits (27) gives a triangular number (72390 = T₃₈₀).

The spelling of 1954530 in words is "one million, nine hundred fifty-four thousand, five hundred thirty".