481405378 has 4 divisors (see below), whose sum is σ = 722108070. Its totient is φ = 240702688.

The previous prime is 481405373. The next prime is 481405399. The reversal of 481405378 is 873504184.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 422836969 + 58568409 = 20563^2 + 7653^2 .

It is a super-2 number, since 2×481405378² = 463502275934645768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 481405378.

It is not an unprimeable number, because it can be changed into a prime (481405373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120351343 + ... + 120351346.

Almost surely, 2^481405378 is an apocalyptic number.

481405378 is a deficient number, since it is larger than the sum of its proper divisors (240702692).

481405378 is a wasteful number, since it uses less digits than its factorization.

481405378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240702691.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 481405378 is about 21940.9520759697. The cubic root of 481405378 is about 783.7369321207.

The spelling of 481405378 in words is "four hundred eighty-one million, four hundred five thousand, three hundred seventy-eight".