1045271400 has 96 divisors (see below), whose sum is σ = 3248229600. Its totient is φ = 278060800.

The previous prime is 1045271393. The next prime is 1045271429. The reversal of 1045271400 is 41725401.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274711 + ... + 278489.

It is an arithmetic number, because the mean of its divisors is an integer number (33835725).

Almost surely, 2^1045271400 is an apocalyptic number.

1045271400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045271400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624114800).

1045271400 is an abundant number, since it is smaller than the sum of its proper divisors (2202958200).

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

1045271400 is a wasteful number, since it uses less digits than its factorization.

1045271400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1045271400 is about 32330.6572775748. The cubic root of 1045271400 is about 1014.8683045583.

Adding to 1045271400 its reverse (41725401), we get a palindrome (1086996801).

The spelling of 1045271400 in words is "one billion, forty-five million, two hundred seventy-one thousand, four hundred".