1980054 has 24 divisors (see below), whose sum is σ = 4396392. Its totient is φ = 643680.

The previous prime is 1980053. The next prime is 1980067. The reversal of 1980054 is 4500891.

It is a super-2 number, since 2×1980054² = 7841227685832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (183183).

2^1980054 is an apocalyptic number.

1980054 is an abundant number, since it is smaller than the sum of its proper divisors (2416338).

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

1980054 is a wasteful number, since it uses less digits than its factorization.

1980054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1980054 is about 1407.1439158807. The cubic root of 1980054 is about 125.5718651060.

The spelling of 1980054 in words is "one million, nine hundred eighty thousand, fifty-four".