381698456 has 16 divisors (see below), whose sum is σ = 718473240. Its totient is φ = 190105600.

The previous prime is 381698453. The next prime is 381698497. The reversal of 381698456 is 654896183.

It is a super-2 number, since 2×381698456² = 291387422625567872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381698453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90770 + ... + 94881.

Almost surely, 2^381698456 is an apocalyptic number.

It is an amenable number.

381698456 is a deficient number, since it is larger than the sum of its proper divisors (336774784).

381698456 is a wasteful number, since it uses less digits than its factorization.

381698456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185914 (or 185910 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 381698456 is about 19537.1045961268. The cubic root of 381698456 is about 725.3931793617.

The spelling of 381698456 in words is "three hundred eighty-one million, six hundred ninety-eight thousand, four hundred fifty-six".