445154004 has 18 divisors (see below), whose sum is σ = 1125250490. Its totient is φ = 148384656.

The previous prime is 445153999. The next prime is 445154009. The reversal of 445154004 is 400451544.

It is an interprime number because it is at equal distance from previous prime (445153999) and next prime (445154009).

It can be written as a sum of positive squares in only one way, i.e., 223203600 + 221950404 = 14940^2 + 14898^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445154009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6182659 + ... + 6182730.

Almost surely, 2^445154004 is an apocalyptic number.

It is an amenable number.

445154004 is an abundant number, since it is smaller than the sum of its proper divisors (680096486).

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

445154004 is a wasteful number, since it uses less digits than its factorization.

445154004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12365399 (or 12365394 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 445154004 is about 21098.6730388430. The cubic root of 445154004 is about 763.5487338994.

It can be divided in two parts, 445 and 154004, that added together give a square (154449 = 393²).

The spelling of 445154004 in words is "four hundred forty-five million, one hundred fifty-four thousand, four".