381006461 has 8 divisors (see below), whose sum is σ = 429051648. Its totient is φ = 335196000.

The previous prime is 381006407. The next prime is 381006467. The reversal of 381006461 is 164600183.

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

It is a cyclic number.

It is not a de Polignac number, because 381006461 - 2¹⁰ = 381005437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381006467) 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, 558320 + ... + 559001.

It is an arithmetic number, because the mean of its divisors is an integer number (53631456).

Almost surely, 2^381006461 is an apocalyptic number.

381006461 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

381006461 is a deficient number, since it is larger than the sum of its proper divisors (48045187).

381006461 is a wasteful number, since it uses less digits than its factorization.

381006461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117363.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 381006461 is about 19519.3867987701. The cubic root of 381006461 is about 724.9545503019.

The spelling of 381006461 in words is "three hundred eighty-one million, six thousand, four hundred sixty-one".