1023978730 has 16 divisors (see below), whose sum is σ = 1844393184. Its totient is φ = 409317840.

The previous prime is 1023978691. The next prime is 1023978733. The reversal of 1023978730 is 378793201.

1023978730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1023978733) 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, 18132 + ... + 48751.

It is an arithmetic number, because the mean of its divisors is an integer number (115274574).

Almost surely, 2^1023978730 is an apocalyptic number.

1023978730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023978730 is a deficient number, since it is larger than the sum of its proper divisors (820414454).

1023978730 is a wasteful number, since it uses less digits than its factorization.

1023978730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68421.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1023978730 is about 31999.6676545242. The cubic root of 1023978730 is about 1007.9298610861.

The spelling of 1023978730 in words is "one billion, twenty-three million, nine hundred seventy-eight thousand, seven hundred thirty".