381211476 has 48 divisors (see below), whose sum is σ = 929867904. Its totient is φ = 121323136.

The previous prime is 381211427. The next prime is 381211483. The reversal of 381211476 is 674112183.

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, 219106 + ... + 220838.

It is an arithmetic number, because the mean of its divisors is an integer number (19372248).

Almost surely, 2^381211476 is an apocalyptic number.

It is an amenable number.

381211476 is an abundant number, since it is smaller than the sum of its proper divisors (548656428).

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

381211476 is a wasteful number, since it uses less digits than its factorization.

381211476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560 (or 2558 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 381211476 is about 19524.6376662923. The cubic root of 381211476 is about 725.0845567648.

The spelling of 381211476 in words is "three hundred eighty-one million, two hundred eleven thousand, four hundred seventy-six".