1380492478 has 8 divisors (see below), whose sum is σ = 2071384272. Its totient is φ = 690031056.

The previous prime is 1380492469. The next prime is 1380492479. The reversal of 1380492478 is 8742940831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380492479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99450 + ... + 112477.

It is an arithmetic number, because the mean of its divisors is an integer number (258923034).

Almost surely, 2^1380492478 is an apocalyptic number.

1380492478 is a deficient number, since it is larger than the sum of its proper divisors (690891794).

1380492478 is a wasteful number, since it uses less digits than its factorization.

1380492478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215186.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 1380492478 is about 37154.9791818001. The cubic root of 1380492478 is about 1113.4687038435.

The spelling of 1380492478 in words is "one billion, three hundred eighty million, four hundred ninety-two thousand, four hundred seventy-eight".