380972155 has 16 divisors (see below), whose sum is σ = 467757504. Its totient is φ = 297794560.

The previous prime is 380972149. The next prime is 380972183. The reversal of 380972155 is 551279083.

It is not a de Polignac number, because 380972155 - 2¹³ = 380963963 is a prime.

It is a Duffinian 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, 35367 + ... + 44863.

It is an arithmetic number, because the mean of its divisors is an integer number (29234844).

Almost surely, 2^380972155 is an apocalyptic number.

380972155 is a deficient number, since it is larger than the sum of its proper divisors (86785349).

380972155 is a wasteful number, since it uses less digits than its factorization.

380972155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 380972155 is about 19518.5080116283. The cubic root of 380972155 is about 724.9327912332.

The spelling of 380972155 in words is "three hundred eighty million, nine hundred seventy-two thousand, one hundred fifty-five".