1456065978 has 16 divisors (see below), whose sum is σ = 2914571136. Its totient is φ = 484948800.

The previous prime is 1456065977. The next prime is 1456065983. The reversal of 1456065978 is 8795606541.

It is a self number, because there is not a number n which added to its sum of digits gives 1456065978.

It is not an unprimeable number, because it can be changed into a prime (1456065977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93826 + ... + 108237.

It is an arithmetic number, because the mean of its divisors is an integer number (182160696).

Almost surely, 2^1456065978 is an apocalyptic number.

1456065978 is an abundant number, since it is smaller than the sum of its proper divisors (1458505158).

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

1456065978 is a wasteful number, since it uses less digits than its factorization.

1456065978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203269.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 1456065978 is about 38158.4325935959. The cubic root of 1456065978 is about 1133.4273413562.

The spelling of 1456065978 in words is "one billion, four hundred fifty-six million, sixty-five thousand, nine hundred seventy-eight".