1020034491 has 16 divisors (see below), whose sum is σ = 1574016000. Its totient is φ = 575497728.

The previous prime is 1020034453. The next prime is 1020034501. The reversal of 1020034491 is 1944300201.

It is not a de Polignac number, because 1020034491 - 2⁷ = 1020034363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020034591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305766 + ... + 309083.

It is an arithmetic number, because the mean of its divisors is an integer number (98376000).

Almost surely, 2^1020034491 is an apocalyptic number.

1020034491 is a deficient number, since it is larger than the sum of its proper divisors (553981509).

1020034491 is an equidigital number, since it uses as much as digits as its factorization.

1020034491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614938.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1020034491 is about 31937.9788183285. The cubic root of 1020034491 is about 1006.6340556492.

Adding to 1020034491 its reverse (1944300201), we get a palindrome (2964334692).

The spelling of 1020034491 in words is "one billion, twenty million, thirty-four thousand, four hundred ninety-one".