1079042040 has 128 divisors (see below), whose sum is σ = 3642624000. Its totient is φ = 284079744.

The previous prime is 1079042009. The next prime is 1079042047. The reversal of 1079042040 is 402409701.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1079041995 and 1079042013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1079042047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78997 + ... + 91643.

It is an arithmetic number, because the mean of its divisors is an integer number (28458000).

Almost surely, 2^1079042040 is an apocalyptic number.

1079042040 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 1079042040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821312000).

1079042040 is an abundant number, since it is smaller than the sum of its proper divisors (2563581960).

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

1079042040 is a wasteful number, since it uses less digits than its factorization.

1079042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12746 (or 12736 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1079042040 is about 32848.7753196371. The cubic root of 1079042040 is about 1025.6821285384.

The spelling of 1079042040 in words is "one billion, seventy-nine million, forty-two thousand, forty".