380910642 has 64 divisors (see below), whose sum is σ = 887715840. Its totient is φ = 106717824.

The previous prime is 380910571. The next prime is 380910643. The reversal of 380910642 is 246019083.

It is not an unprimeable number, because it can be changed into a prime (380910643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 867459 + ... + 867897.

It is an arithmetic number, because the mean of its divisors is an integer number (13870560).

Almost surely, 2^380910642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380910642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443857920).

380910642 is an abundant number, since it is smaller than the sum of its proper divisors (506805198).

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

380910642 is a wasteful number, since it uses less digits than its factorization.

380910642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 380910642 is about 19516.9321872061. The cubic root of 380910642 is about 724.8937724663.

The spelling of 380910642 in words is "three hundred eighty million, nine hundred ten thousand, six hundred forty-two".