1154034020 has 24 divisors (see below), whose sum is σ = 2441976768. Its totient is φ = 458088800.

The previous prime is 1154033953. The next prime is 1154034029. The reversal of 1154034020 is 204304511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1154033983 and 1154034001.

It is not an unprimeable number, because it can be changed into a prime (1154034029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217616 + ... + 222855.

It is an arithmetic number, because the mean of its divisors is an integer number (101749032).

Almost surely, 2^1154034020 is an apocalyptic number.

1154034020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1154034020 is an abundant number, since it is smaller than the sum of its proper divisors (1287942748).

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

1154034020 is a wasteful number, since it uses less digits than its factorization.

1154034020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440611 (or 440609 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1154034020 is about 33971.0762266961. The cubic root of 1154034020 is about 1048.9131671916.

Adding to 1154034020 its reverse (204304511), we get a palindrome (1358338531).

The spelling of 1154034020 in words is "one billion, one hundred fifty-four million, thirty-four thousand, twenty".