1994243050 has 12 divisors (see below), whose sum is σ = 3709292166. Its totient is φ = 797697200.

The previous prime is 1994243023. The next prime is 1994243077. The reversal of 1994243050 is 503424991.

It is an interprime number because it is at equal distance from previous prime (1994243023) and next prime (1994243077).

It can be written as a sum of positive squares in 3 ways, for example, as 1455956649 + 538286401 = 38157^2 + 23201^2 .

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, 19942381 + ... + 19942480.

Almost surely, 2^1994243050 is an apocalyptic number.

1994243050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1994243050 is a deficient number, since it is larger than the sum of its proper divisors (1715049116).

1994243050 is a wasteful number, since it uses less digits than its factorization.

1994243050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39884873 (or 39884868 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1994243050 is about 44656.9485074831. The cubic root of 1994243050 is about 1258.7110043745.

The spelling of 1994243050 in words is "one billion, nine hundred ninety-four million, two hundred forty-three thousand, fifty".