381722748 has 48 divisors (see below), whose sum is σ = 990009216. Its totient is φ = 113488960.

The previous prime is 381722729. The next prime is 381722753. The reversal of 381722748 is 847227183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20286 + ... + 34277.

It is an arithmetic number, because the mean of its divisors is an integer number (20625192).

Almost surely, 2^381722748 is an apocalyptic number.

It is an amenable number.

381722748 is an abundant number, since it is smaller than the sum of its proper divisors (608286468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381722748 is a wasteful number, since it uses less digits than its factorization.

381722748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54634 (or 54632 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 381722748 is about 19537.7262750812. The cubic root of 381722748 is about 725.4085674925.

It can be divided in two parts, 3817 and 22748, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 381722748 in words is "three hundred eighty-one million, seven hundred twenty-two thousand, seven hundred forty-eight".