1140435420 has 48 divisors (see below), whose sum is σ = 3194999808. Its totient is φ = 303946560.

The previous prime is 1140435371. The next prime is 1140435431. The reversal of 1140435420 is 245340411.

It is a congruent number.

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, 133065 + ... + 141375.

It is an arithmetic number, because the mean of its divisors is an integer number (66562496).

Almost surely, 2^1140435420 is an apocalyptic number.

1140435420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140435420 is an abundant number, since it is smaller than the sum of its proper divisors (2054564388).

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

1140435420 is a wasteful number, since it uses less digits than its factorization.

1140435420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610 (or 10608 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1140435420 is about 33770.3334303942. Note that the first 3 decimals coincide. The cubic root of 1140435420 is about 1044.7769095592.

Adding to 1140435420 its reverse (245340411), we get a palindrome (1385775831).

The spelling of 1140435420 in words is "one billion, one hundred forty million, four hundred thirty-five thousand, four hundred twenty".