1993399070 has 32 divisors (see below), whose sum is σ = 3873864960. Its totient is φ = 734169600.

The previous prime is 1993399061. The next prime is 1993399081. The reversal of 1993399070 is 709933991.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33011 + ... + 71249.

It is an arithmetic number, because the mean of its divisors is an integer number (121058280).

Almost surely, 2^1993399070 is an apocalyptic number.

1993399070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1993399070 is a deficient number, since it is larger than the sum of its proper divisors (1880465890).

1993399070 is a wasteful number, since it uses less digits than its factorization.

1993399070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38660.

The product of its (nonzero) digits is 413343, while the sum is 50.

The square root of 1993399070 is about 44647.4979142169. The cubic root of 1993399070 is about 1258.5334137158.

The spelling of 1993399070 in words is "one billion, nine hundred ninety-three million, three hundred ninety-nine thousand, seventy".