380257940 has 24 divisors (see below), whose sum is σ = 800150400. Its totient is φ = 151796768.

The previous prime is 380257937. The next prime is 380257961. The reversal of 380257940 is 49752083.

It is a super-2 number, since 2×380257940² = 289192201866087200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 380257894 and 380257903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8840 + ... + 28959.

It is an arithmetic number, because the mean of its divisors is an integer number (33339600).

Almost surely, 2^380257940 is an apocalyptic number.

It is an amenable number.

380257940 is an abundant number, since it is smaller than the sum of its proper divisors (419892460).

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

380257940 is a wasteful number, since it uses less digits than its factorization.

380257940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38311 (or 38309 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 380257940 is about 19500.2035886808. The cubic root of 380257940 is about 724.4794932218.

The spelling of 380257940 in words is "three hundred eighty million, two hundred fifty-seven thousand, nine hundred forty".