1994057 has 8 divisors (see below), whose sum is σ = 2163336. Its totient is φ = 1827072.

The previous prime is 1994053. The next prime is 1994059. The reversal of 1994057 is 7504991.

It can be written as a sum of positive squares in 4 ways, for example, as 241081 + 1752976 = 491^2 + 1324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1994057 - 2² = 1994053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994051) 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, 1553 + ... + 2529.

It is an arithmetic number, because the mean of its divisors is an integer number (270417).

2^1994057 is an apocalyptic number.

It is an amenable number.

1994057 is a deficient number, since it is larger than the sum of its proper divisors (169279).

1994057 is a wasteful number, since it uses less digits than its factorization.

1994057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1994057 is about 1412.1108313443. The cubic root of 1994057 is about 125.8671859954.

The spelling of 1994057 in words is "one million, nine hundred ninety-four thousand, fifty-seven".