1992597630 has 32 divisors (see below), whose sum is σ = 4911486624. Its totient is φ = 516998016.

The previous prime is 1992597599. The next prime is 1992597641. The reversal of 1992597630 is 367952991.

It is a happy number.

1992597630 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 896457 + ... + 898676.

It is an arithmetic number, because the mean of its divisors is an integer number (153483957).

Almost surely, 2^1992597630 is an apocalyptic number.

1992597630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992597630 is an abundant number, since it is smaller than the sum of its proper divisors (2918888994).

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

1992597630 is a wasteful number, since it uses less digits than its factorization.

1992597630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795180.

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 1992597630 is about 44638.5218169240. The cubic root of 1992597630 is about 1258.3647279372.

The spelling of 1992597630 in words is "one billion, nine hundred ninety-two million, five hundred ninety-seven thousand, six hundred thirty".