1011379642 has 16 divisors (see below), whose sum is σ = 1867162752. Its totient is φ = 400106160.

The previous prime is 1011379631. The next prime is 1011379643. The reversal of 1011379642 is 2469731101.

It is a junction number, because it is equal to n+sod(n) for n = 1011379598 and 1011379607.

It is not an unprimeable number, because it can be changed into a prime (1011379643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2778334 + ... + 2778697.

It is an arithmetic number, because the mean of its divisors is an integer number (116697672).

Almost surely, 2^1011379642 is an apocalyptic number.

1011379642 is a deficient number, since it is larger than the sum of its proper divisors (855783110).

1011379642 is a wasteful number, since it uses less digits than its factorization.

1011379642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557053.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1011379642 is about 31802.1955531375. The cubic root of 1011379642 is about 1003.7789158074.

The spelling of 1011379642 in words is "one billion, eleven million, three hundred seventy-nine thousand, six hundred forty-two".