1020745750 has 64 divisors (see below), whose sum is σ = 2007742464. Its totient is φ = 387842400.

The previous prime is 1020745723. The next prime is 1020745753. The reversal of 1020745750 is 575470201.

It is a super-2 number, since 2×1020745750² = 2083843772286125000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020745753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 959719 + ... + 960781.

It is an arithmetic number, because the mean of its divisors is an integer number (31370976).

Almost surely, 2^1020745750 is an apocalyptic number.

1020745750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020745750 is a deficient number, since it is larger than the sum of its proper divisors (986996714).

1020745750 is a wasteful number, since it uses less digits than its factorization.

1020745750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 1020745750 is about 31949.1118812401. Note that the first 3 decimals coincide. The cubic root of 1020745750 is about 1006.8679729621.

The spelling of 1020745750 in words is "one billion, twenty million, seven hundred forty-five thousand, seven hundred fifty".