1952073381 has 4 divisors (see below), whose sum is σ = 2602764512. Its totient is φ = 1301382252.

The previous prime is 1952073373. The next prime is 1952073397. The reversal of 1952073381 is 1833702591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1952073381 - 2³ = 1952073373 is a prime.

It is a super-2 number, since 2×1952073381² = 7621180969617542322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1952073311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325345561 + ... + 325345566.

It is an arithmetic number, because the mean of its divisors is an integer number (650691128).

Almost surely, 2^1952073381 is an apocalyptic number.

It is an amenable number.

1952073381 is a deficient number, since it is larger than the sum of its proper divisors (650691131).

1952073381 is an equidigital number, since it uses as much as digits as its factorization.

1952073381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650691130.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1952073381 is about 44182.2745113920. The cubic root of 1952073381 is about 1249.7756143366.

The spelling of 1952073381 in words is "one billion, nine hundred fifty-two million, seventy-three thousand, three hundred eighty-one".