1953423219 has 16 divisors (see below), whose sum is σ = 2842383744. Its totient is φ = 1183459200.

The previous prime is 1953423217. The next prime is 1953423223. The reversal of 1953423219 is 9123243591.

It is not a de Polignac number, because 1953423219 - 2¹ = 1953423217 is a prime.

It is a super-2 number, since 2×1953423219² = 7631724545056643922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1953423211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96459 + ... + 114939.

It is an arithmetic number, because the mean of its divisors is an integer number (177648984).

Almost surely, 2^1953423219 is an apocalyptic number.

1953423219 is a deficient number, since it is larger than the sum of its proper divisors (888960525).

1953423219 is a wasteful number, since it uses less digits than its factorization.

1953423219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21698.

The product of its digits is 58320, while the sum is 39.

The square root of 1953423219 is about 44197.5476582129. The cubic root of 1953423219 is about 1250.0636168156.

The spelling of 1953423219 in words is "one billion, nine hundred fifty-three million, four hundred twenty-three thousand, two hundred nineteen".