1957058990 has 8 divisors (see below), whose sum is σ = 3522706200. Its totient is φ = 782823592.

The previous prime is 1957058977. The next prime is 1957058993. The reversal of 1957058990 is 998507591.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957058993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97852940 + ... + 97852959.

It is an arithmetic number, because the mean of its divisors is an integer number (440338275).

Almost surely, 2^1957058990 is an apocalyptic number.

1957058990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1957058990 is a deficient number, since it is larger than the sum of its proper divisors (1565647210).

1957058990 is a wasteful number, since it uses less digits than its factorization.

1957058990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195705906.

The product of its (nonzero) digits is 1020600, while the sum is 53.

The square root of 1957058990 is about 44238.6594507564. The cubic root of 1957058990 is about 1250.8386883556.

The spelling of 1957058990 in words is "one billion, nine hundred fifty-seven million, fifty-eight thousand, nine hundred ninety".