1054840 has 16 divisors (see below), whose sum is σ = 2373480. Its totient is φ = 421920.

The previous prime is 1054831. The next prime is 1054843. The reversal of 1054840 is 484501.

It is a super-2 number, since 2×1054840² = 2225374851200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13146 + ... + 13225.

2^1054840 is an apocalyptic number.

1054840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1054840 is an abundant number, since it is smaller than the sum of its proper divisors (1318640).

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

1054840 is a wasteful number, since it uses less digits than its factorization.

1054840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26382 (or 26378 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1054840 is about 1027.0540394741. The cubic root of 1054840 is about 101.7955664444.

The spelling of 1054840 in words is "one million, fifty-four thousand, eight hundred forty".