1078423722 has 48 divisors (see below), whose sum is σ = 2429736192. Its totient is φ = 345314880.

The previous prime is 1078423721. The next prime is 1078423727. The reversal of 1078423722 is 2273248701.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1078423721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69393 + ... + 83499.

It is an arithmetic number, because the mean of its divisors is an integer number (50619504).

Almost surely, 2^1078423722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1078423722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1214868096).

1078423722 is an abundant number, since it is smaller than the sum of its proper divisors (1351312470).

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

1078423722 is a wasteful number, since it uses less digits than its factorization.

1078423722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283 (or 14280 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 1078423722 is about 32839.3623872328. The cubic root of 1078423722 is about 1025.4861772920.

The spelling of 1078423722 in words is "one billion, seventy-eight million, four hundred twenty-three thousand, seven hundred twenty-two".