1478146890 has 48 divisors (see below), whose sum is σ = 3899385504. Its totient is φ = 358337760.

The previous prime is 1478146877. The next prime is 1478146897. The reversal of 1478146890 is 986418741.

It is not an unprimeable number, because it can be changed into a prime (1478146897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199972 + ... + 207231.

It is an arithmetic number, because the mean of its divisors is an integer number (81237198).

Almost surely, 2^1478146890 is an apocalyptic number.

1478146890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1478146890 is an abundant number, since it is smaller than the sum of its proper divisors (2421238614).

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

1478146890 is a wasteful number, since it uses less digits than its factorization.

1478146890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407235 (or 407224 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1478146890 is about 38446.6759291359. The cubic root of 1478146890 is about 1139.1280112385.

The spelling of 1478146890 in words is "one billion, four hundred seventy-eight million, one hundred forty-six thousand, eight hundred ninety".