381100445 has 8 divisors (see below), whose sum is σ = 498895200. Its totient is φ = 277163920.

The previous prime is 381100427. The next prime is 381100451. The reversal of 381100445 is 544001183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 381100445 - 2⁸ = 381100189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3464495 + ... + 3464604.

It is an arithmetic number, because the mean of its divisors is an integer number (62361900).

Almost surely, 2^381100445 is an apocalyptic number.

It is an amenable number.

381100445 is a deficient number, since it is larger than the sum of its proper divisors (117794755).

381100445 is a wasteful number, since it uses less digits than its factorization.

381100445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6929115.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 381100445 is about 19521.7941030019. The cubic root of 381100445 is about 725.0141543015.

The spelling of 381100445 in words is "three hundred eighty-one million, one hundred thousand, four hundred forty-five".