1023431730 has 16 divisors (see below), whose sum is σ = 2456236224. Its totient is φ = 272915120.

The previous prime is 1023431723. The next prime is 1023431741. The reversal of 1023431730 is 371343201.

It is a zygodrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1023431730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17057166 + ... + 17057225.

It is an arithmetic number, because the mean of its divisors is an integer number (153514764).

Almost surely, 2^1023431730 is an apocalyptic number.

1023431730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023431730 is an abundant number, since it is smaller than the sum of its proper divisors (1432804494).

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

1023431730 is a wasteful number, since it uses less digits than its factorization.

1023431730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34114401.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 1023431730 is about 31991.1195490249. The cubic root of 1023431730 is about 1007.7503535045.

Adding to 1023431730 its reverse (371343201), we get a palindrome (1394774931).

The spelling of 1023431730 in words is "one billion, twenty-three million, four hundred thirty-one thousand, seven hundred thirty".