1994897358 has 12 divisors (see below), whose sum is σ = 4322277648. Its totient is φ = 664965780.

The previous prime is 1994897347. The next prime is 1994897413. The reversal of 1994897358 is 8537984991.

1994897358 is a `hidden beast` number, since 199 + 4 + 8 + 97 + 358 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1994897295 and 1994897304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55413798 + ... + 55413833.

It is an arithmetic number, because the mean of its divisors is an integer number (360189804).

Almost surely, 2^1994897358 is an apocalyptic number.

1994897358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1994897358 is an abundant number, since it is smaller than the sum of its proper divisors (2327380290).

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

1994897358 is a wasteful number, since it uses less digits than its factorization.

1994897358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110827639 (or 110827636 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 1994897358 is about 44664.2738438677. The cubic root of 1994897358 is about 1258.8486496871.

The spelling of 1994897358 in words is "one billion, nine hundred ninety-four million, eight hundred ninety-seven thousand, three hundred fifty-eight".