381120490 has 32 divisors (see below), whose sum is σ = 696718080. Its totient is φ = 150081984.

The previous prime is 381120473. The next prime is 381120499. The reversal of 381120490 is 94021183.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (381120499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483877 + ... + 484663.

It is an arithmetic number, because the mean of its divisors is an integer number (21772440).

Almost surely, 2^381120490 is an apocalyptic number.

381120490 is a deficient number, since it is larger than the sum of its proper divisors (315597590).

381120490 is a wasteful number, since it uses less digits than its factorization.

381120490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 381120490 is about 19522.3074968099. The cubic root of 381120490 is about 725.0268654333.

The spelling of 381120490 in words is "three hundred eighty-one million, one hundred twenty thousand, four hundred ninety".