1079540220 has 144 divisors (see below), whose sum is σ = 3341679264. Its totient is φ = 260198400.

The previous prime is 1079540183. The next prime is 1079540221. The reversal of 1079540220 is 220459701.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1079540221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1749352 + ... + 1749968.

It is an arithmetic number, because the mean of its divisors is an integer number (23206106).

Almost surely, 2^1079540220 is an apocalyptic number.

1079540220 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 1079540220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670839632).

1079540220 is an abundant number, since it is smaller than the sum of its proper divisors (2262139044).

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

1079540220 is a wasteful number, since it uses less digits than its factorization.

1079540220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1079540220 is about 32856.3573757043. The cubic root of 1079540220 is about 1025.8399523881.

Adding to 1079540220 its reverse (220459701), we get a palindrome (1299999921).

It can be divided in two parts, 10795 and 40220, that added together give a palindrome (51015).

The spelling of 1079540220 in words is "one billion, seventy-nine million, five hundred forty thousand, two hundred twenty".