445505494 has 16 divisors (see below), whose sum is σ = 764017056. Its totient is φ = 190857600.

The previous prime is 445505491. The next prime is 445505497. The reversal of 445505494 is 494505544.

It is an interprime number because it is at equal distance from previous prime (445505491) and next prime (445505497).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445505491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48424 + ... + 56884.

It is an arithmetic number, because the mean of its divisors is an integer number (47751066).

Almost surely, 2^445505494 is an apocalyptic number.

445505494 is a deficient number, since it is larger than the sum of its proper divisors (318511562).

445505494 is a wasteful number, since it uses less digits than its factorization.

445505494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12231.

The product of its (nonzero) digits is 288000, while the sum is 40.

The square root of 445505494 is about 21107.0010659970. The cubic root of 445505494 is about 763.7496449970.

Subtracting 445505494 from its reverse (494505544), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 445505494 in words is "four hundred forty-five million, five hundred five thousand, four hundred ninety-four".