1024380 has 96 divisors (see below), whose sum is σ = 3655680. Its totient is φ = 233280.

The previous prime is 1024379. The next prime is 1024391. The reversal of 1024380 is 834201.

1024380 = 70² + 71² + ... + 150².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3645 + ... + 3915.

It is an arithmetic number, because the mean of its divisors is an integer number (38080).

2^1024380 is an apocalyptic number.

1024380 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 1024380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827840).

1024380 is an abundant number, since it is smaller than the sum of its proper divisors (2631300).

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

1024380 is a wasteful number, since it uses less digits than its factorization.

1024380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1024380 is about 1012.1165940740. The cubic root of 1024380 is about 100.8061504184.

Adding to 1024380 its reverse (834201), we get a palindrome (1858581).

The spelling of 1024380 in words is "one million, twenty-four thousand, three hundred eighty".