1378214460 has 96 divisors (see below), whose sum is σ = 4900331520. Its totient is φ = 315019584.

The previous prime is 1378214449. The next prime is 1378214471. The reversal of 1378214460 is 644128731.

1378214460 is a `hidden beast` number, since 137 + 82 + 1 + 446 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1378214449) and next prime (1378214471).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178524 + ... + 186083.

It is an arithmetic number, because the mean of its divisors is an integer number (51045120).

Almost surely, 2^1378214460 is an apocalyptic number.

1378214460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378214460 is an abundant number, since it is smaller than the sum of its proper divisors (3522117060).

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

1378214460 is a wasteful number, since it uses less digits than its factorization.

1378214460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364632 (or 364624 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1378214460 is about 37124.3109026956. The cubic root of 1378214460 is about 1112.8559036357.

The spelling of 1378214460 in words is "one billion, three hundred seventy-eight million, two hundred fourteen thousand, four hundred sixty".