1953834684 has 24 divisors (see below), whose sum is σ = 4827121488. Its totient is φ = 612967680.

The previous prime is 1953834643. The next prime is 1953834689. The reversal of 1953834684 is 4864383591.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1953834689) 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 7 ways as a sum of consecutive naturals, for example, 4788607 + ... + 4789014.

It is an arithmetic number, because the mean of its divisors is an integer number (201130062).

Almost surely, 2^1953834684 is an apocalyptic number.

It is an amenable number.

1953834684 is an abundant number, since it is smaller than the sum of its proper divisors (2873286804).

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

1953834684 is a wasteful number, since it uses less digits than its factorization.

1953834684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9577645 (or 9577643 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 1953834684 is about 44202.2022528290. The cubic root of 1953834684 is about 1250.1513809196.

The spelling of 1953834684 in words is "one billion, nine hundred fifty-three million, eight hundred thirty-four thousand, six hundred eighty-four".