381407100 has 72 divisors (see below), whose sum is σ = 1133396208. Its totient is φ = 98956800.

The previous prime is 381407099. The next prime is 381407111. The reversal of 381407100 is 1704183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6081 + ... + 28280.

It is an arithmetic number, because the mean of its divisors is an integer number (15741614).

Almost surely, 2^381407100 is an apocalyptic number.

381407100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381407100 is an abundant number, since it is smaller than the sum of its proper divisors (751989108).

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

381407100 is a wasteful number, since it uses less digits than its factorization.

381407100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34415 (or 34408 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 381407100 is about 19529.6466941929. The cubic root of 381407100 is about 725.2085646485.

The spelling of 381407100 in words is "three hundred eighty-one million, four hundred seven thousand, one hundred".