1955493242 has 4 divisors (see below), whose sum is σ = 2933239866. Its totient is φ = 977746620.

The previous prime is 1955493193. The next prime is 1955493259. The reversal of 1955493242 is 2423945591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1913100121 + 42393121 = 43739^2 + 6511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1955493193 and 1955493202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488873309 + ... + 488873312.

Almost surely, 2^1955493242 is an apocalyptic number.

1955493242 is a deficient number, since it is larger than the sum of its proper divisors (977746624).

1955493242 is an equidigital number, since it uses as much as digits as its factorization.

1955493242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977746623.

The product of its digits is 388800, while the sum is 44.

The square root of 1955493242 is about 44220.9593066455. The cubic root of 1955493242 is about 1250.5050208956.

The spelling of 1955493242 in words is "one billion, nine hundred fifty-five million, four hundred ninety-three thousand, two hundred forty-two".