4780381 has 8 divisors (see below), whose sum is σ = 5054400. Its totient is φ = 4508640.

The previous prime is 4780379. The next prime is 4780397. The reversal of 4780381 is 1830874.

It is a happy number.

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 4780381 - 2¹ = 4780379 is a prime.

It is a super-2 number, since 2×4780381² = 45704085010322, which contains 22 as substring.

It is a Duffinian number.

4780381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780361) 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, 5505 + ... + 6313.

It is an arithmetic number, because the mean of its divisors is an integer number (631800).

Almost surely, 2^4780381 is an apocalyptic number.

It is an amenable number.

4780381 is a deficient number, since it is larger than the sum of its proper divisors (274019).

4780381 is a wasteful number, since it uses less digits than its factorization.

4780381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 4780381 is about 2186.4082418432. The cubic root of 4780381 is about 168.4563955416.

The spelling of 4780381 in words is "four million, seven hundred eighty thousand, three hundred eighty-one".