381758007 has 8 divisors (see below), whose sum is σ = 509296000. Its totient is φ = 254362680.

The previous prime is 381757997. The next prime is 381758021. The reversal of 381758007 is 700857183.

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

It is not a de Polignac number, because 381758007 - 2⁷ = 381757879 is a prime.

It is a super-2 number, since 2×381758007² = 291478351817224098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381758057) 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, 29257 + ... + 40242.

It is an arithmetic number, because the mean of its divisors is an integer number (63662000).

Almost surely, 2^381758007 is an apocalyptic number.

381758007 is a deficient number, since it is larger than the sum of its proper divisors (127537993).

381758007 is a wasteful number, since it uses less digits than its factorization.

381758007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71333.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 381758007 is about 19538.6285854458. The cubic root of 381758007 is about 725.4309016721.

The spelling of 381758007 in words is "three hundred eighty-one million, seven hundred fifty-eight thousand, seven".