1045278 has 32 divisors (see below), whose sum is σ = 2503200. Its totient is φ = 321408.

The previous prime is 1045277. The next prime is 1045307. The reversal of 1045278 is 8725401.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43 + ... + 1446.

It is an arithmetic number, because the mean of its divisors is an integer number (78225).

2^1045278 is an apocalyptic number.

1045278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251600).

1045278 is an abundant number, since it is smaller than the sum of its proper divisors (1457922).

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

1045278 is a wasteful number, since it uses less digits than its factorization.

1045278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1045278 is about 1022.3883802157. The cubic root of 1045278 is about 101.4870440564.

The spelling of 1045278 in words is "one million, forty-five thousand, two hundred seventy-eight".