380342780 has 48 divisors (see below), whose sum is σ = 810311040. Its totient is φ = 149947200.

The previous prime is 380342761. The next prime is 380342791. The reversal of 380342780 is 87243083.

It is a self number, because there is not a number n which added to its sum of digits gives 380342780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468575 + ... + 469385.

It is an arithmetic number, because the mean of its divisors is an integer number (16881480).

Almost surely, 2^380342780 is an apocalyptic number.

It is an amenable number.

380342780 is an abundant number, since it is smaller than the sum of its proper divisors (429968260).

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

380342780 is a wasteful number, since it uses less digits than its factorization.

380342780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 380342780 is about 19502.3788292608. The cubic root of 380342780 is about 724.5333691686.

The spelling of 380342780 in words is "three hundred eighty million, three hundred forty-two thousand, seven hundred eighty".