247380378 has 32 divisors (see below), whose sum is σ = 566862720. Its totient is φ = 70502400.

The previous prime is 247380377. The next prime is 247380383. The reversal of 247380378 is 873083742.

It is a super-2 number, since 2×247380378² = 122394102838845768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (247380377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9978 + ... + 24378.

It is an arithmetic number, because the mean of its divisors is an integer number (17714460).

Almost surely, 2^247380378 is an apocalyptic number.

247380378 is an abundant number, since it is smaller than the sum of its proper divisors (319482342).

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

247380378 is a wasteful number, since it uses less digits than its factorization.

247380378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14822.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 247380378 is about 15728.3304263358. The cubic root of 247380378 is about 627.7524498641.

The spelling of 247380378 in words is "two hundred forty-seven million, three hundred eighty thousand, three hundred seventy-eight".