1953706340 has 48 divisors (see below), whose sum is σ = 4243276800. Its totient is φ = 755144832.

The previous prime is 1953706291. The next prime is 1953706357. The reversal of 1953706340 is 436073591.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1953706294 and 1953706303.

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, 61106 + ... + 87414.

It is an arithmetic number, because the mean of its divisors is an integer number (88401600).

Almost surely, 2^1953706340 is an apocalyptic number.

1953706340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1953706340 is an abundant number, since it is smaller than the sum of its proper divisors (2289570460).

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

1953706340 is a wasteful number, since it uses less digits than its factorization.

1953706340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26444 (or 26442 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 1953706340 is about 44200.7504461180. The cubic root of 1953706340 is about 1250.1240068974.

The spelling of 1953706340 in words is "one billion, nine hundred fifty-three million, seven hundred six thousand, three hundred forty".