945491642 has 16 divisors (see below), whose sum is σ = 1494102240. Its totient is φ = 447498288.

The previous prime is 945491641. The next prime is 945491713. The reversal of 945491642 is 246194549.

It is a junction number, because it is equal to n+sod(n) for n = 945491593 and 945491602.

It is not an unprimeable number, because it can be changed into a prime (945491641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40148 + ... + 59184.

It is an arithmetic number, because the mean of its divisors is an integer number (93381390).

Almost surely, 2^945491642 is an apocalyptic number.

945491642 is a deficient number, since it is larger than the sum of its proper divisors (548610598).

945491642 is a wasteful number, since it uses less digits than its factorization.

945491642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20365.

The product of its digits is 311040, while the sum is 44.

The square root of 945491642 is about 30748.8478158125. The cubic root of 945491642 is about 981.4900427680.

The spelling of 945491642 in words is "nine hundred forty-five million, four hundred ninety-one thousand, six hundred forty-two".