1460847978 has 48 divisors (see below), whose sum is σ = 3361715136. Its totient is φ = 456888960.

The previous prime is 1460847977. The next prime is 1460847979. The reversal of 1460847978 is 8797480641.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1460847977) and next prime (1460847979).

It is not an unprimeable number, because it can be changed into a prime (1460847977) 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, 94075 + ... + 108497.

It is an arithmetic number, because the mean of its divisors is an integer number (70035732).

Almost surely, 2^1460847978 is an apocalyptic number.

1460847978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1460847978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680857568).

1460847978 is an abundant number, since it is smaller than the sum of its proper divisors (1900867158).

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

1460847978 is a wasteful number, since it uses less digits than its factorization.

1460847978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14779 (or 14776 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 1460847978 is about 38221.0410376274. The cubic root of 1460847978 is about 1134.6667830977. Note that the first 3 decimals are identical.

The spelling of 1460847978 in words is "one billion, four hundred sixty million, eight hundred forty-seven thousand, nine hundred seventy-eight".