1485993378 has 16 divisors (see below), whose sum is σ = 2973254400. Its totient is φ = 495119856.

The previous prime is 1485993359. The next prime is 1485993449. The reversal of 1485993378 is 8733995841.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37225 + ... + 66012.

It is an arithmetic number, because the mean of its divisors is an integer number (185828400).

Almost surely, 2^1485993378 is an apocalyptic number.

1485993378 is an abundant number, since it is smaller than the sum of its proper divisors (1487261022).

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

1485993378 is a wasteful number, since it uses less digits than its factorization.

1485993378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105641.

The product of its digits is 6531840, while the sum is 57.

The square root of 1485993378 is about 38548.5846432784. The cubic root of 1485993378 is about 1141.1400767640.

The spelling of 1485993378 in words is "one billion, four hundred eighty-five million, nine hundred ninety-three thousand, three hundred seventy-eight".