1945270434 has 16 divisors (see below), whose sum is σ = 3891332160. Its totient is φ = 648291600.

The previous prime is 1945270427. The next prime is 1945270447. The reversal of 1945270434 is 4340725491.

It is a super-2 number, since 2×1945270434² = 7568154122789096712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1945270392 and 1945270401.

It is an unprimeable number.

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, 1812 + ... + 62400.

It is an arithmetic number, because the mean of its divisors is an integer number (243208260).

Almost surely, 2^1945270434 is an apocalyptic number.

1945270434 is an abundant number, since it is smaller than the sum of its proper divisors (1946061726).

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

1945270434 is a wasteful number, since it uses less digits than its factorization.

1945270434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65945.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 1945270434 is about 44105.2200311936. The cubic root of 1945270434 is about 1248.3221080038.

The spelling of 1945270434 in words is "one billion, nine hundred forty-five million, two hundred seventy thousand, four hundred thirty-four".