1011938658 has 16 divisors (see below), whose sum is σ = 2024235360. Its totient is φ = 337253216.

The previous prime is 1011938657. The next prime is 1011938663. The reversal of 1011938658 is 8568391101.

1011938658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1011938657) 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, 34333 + ... + 56591.

It is an arithmetic number, because the mean of its divisors is an integer number (126514710).

Almost surely, 2^1011938658 is an apocalyptic number.

1011938658 is an abundant number, since it is smaller than the sum of its proper divisors (1012296702).

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

1011938658 is a wasteful number, since it uses less digits than its factorization.

1011938658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29841.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 1011938658 is about 31810.9832919387. The cubic root of 1011938658 is about 1003.9638200377.

The spelling of 1011938658 in words is "one billion, eleven million, nine hundred thirty-eight thousand, six hundred fifty-eight".