1011430434 has 32 divisors (see below), whose sum is σ = 2365608960. Its totient is φ = 282259152.

The previous prime is 1011430379. The next prime is 1011430471. The reversal of 1011430434 is 4340341101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011430434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278214 + ... + 281825.

It is an arithmetic number, because the mean of its divisors is an integer number (73925280).

Almost surely, 2^1011430434 is an apocalyptic number.

1011430434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1011430434 is an abundant number, since it is smaller than the sum of its proper divisors (1354178526).

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

1011430434 is a wasteful number, since it uses less digits than its factorization.

1011430434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560094.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1011430434 is about 31802.9941043292. The cubic root of 1011430434 is about 1003.7957189554.

Adding to 1011430434 its reverse (4340341101), we get a palindrome (5351771535).

The spelling of 1011430434 in words is "one billion, eleven million, four hundred thirty thousand, four hundred thirty-four".