380157785 has 16 divisors (see below), whose sum is σ = 528705792. Its totient is φ = 257006400.

The previous prime is 380157779. The next prime is 380157787. The reversal of 380157785 is 587751083.

It is not a de Polignac number, because 380157785 - 2¹⁰ = 380156761 is a prime.

It is a super-2 number, since 2×380157785² = 289039882992212450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380157787) by changing a digit.

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, 74006 + ... + 78975.

It is an arithmetic number, because the mean of its divisors is an integer number (33044112).

Almost surely, 2^380157785 is an apocalyptic number.

380157785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

380157785 is a deficient number, since it is larger than the sum of its proper divisors (148548007).

380157785 is a wasteful number, since it uses less digits than its factorization.

380157785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153064.

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 380157785 is about 19497.6353694493. The cubic root of 380157785 is about 724.4158814753.

The spelling of 380157785 in words is "three hundred eighty million, one hundred fifty-seven thousand, seven hundred eighty-five".