1020194738 has 16 divisors (see below), whose sum is σ = 1547792064. Its totient is φ = 504279600.

The previous prime is 1020194711. The next prime is 1020194743. The reversal of 1020194738 is 8374910201.

It is a junction number, because it is equal to n+sod(n) for n = 1020194698 and 1020194707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143381 + ... + 150327.

It is an arithmetic number, because the mean of its divisors is an integer number (96737004).

Almost surely, 2^1020194738 is an apocalyptic number.

1020194738 is a deficient number, since it is larger than the sum of its proper divisors (527597326).

1020194738 is a wasteful number, since it uses less digits than its factorization.

1020194738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7777.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1020194738 is about 31940.4874414903. The cubic root of 1020194738 is about 1006.6867668213.

The spelling of 1020194738 in words is "one billion, twenty million, one hundred ninety-four thousand, seven hundred thirty-eight".