1045400 has 24 divisors (see below), whose sum is σ = 2431020. Its totient is φ = 418080.

The previous prime is 1045397. The next prime is 1045409. The reversal of 1045400 is 45401.

It is a super-2 number, since 2×1045400² = 2185722320000, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045409) 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, 2414 + ... + 2813.

2^1045400 is an apocalyptic number.

1045400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045400 is an abundant number, since it is smaller than the sum of its proper divisors (1385620).

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

1045400 is a wasteful number, since it uses less digits than its factorization.

1045400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243 (or 5234 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1045400 is about 1022.4480426897. The cubic root of 1045400 is about 101.4909922685.

Subtracting from 1045400 its reverse (45401), we obtain a palindrome (999999).

The spelling of 1045400 in words is "one million, forty-five thousand, four hundred".