1153022420 has 48 divisors (see below), whose sum is σ = 2691335808. Its totient is φ = 411365760.

The previous prime is 1153022411. The next prime is 1153022441. The reversal of 1153022420 is 242203511.

It is a super-4 number, since 4×1153022420⁴ (a number of 37 digits) contains 4444 as substring.

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 = 1153022392 and 1153022401.

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, 37784 + ... + 61103.

It is an arithmetic number, because the mean of its divisors is an integer number (56069496).

Almost surely, 2^1153022420 is an apocalyptic number.

1153022420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153022420 is an abundant number, since it is smaller than the sum of its proper divisors (1538313388).

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

1153022420 is a wasteful number, since it uses less digits than its factorization.

1153022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98960 (or 98958 counting only the distinct ones).

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

The square root of 1153022420 is about 33956.1838256303. The cubic root of 1153022420 is about 1048.6065931125.

Adding to 1153022420 its reverse (242203511), we get a palindrome (1395225931).

The spelling of 1153022420 in words is "one billion, one hundred fifty-three million, twenty-two thousand, four hundred twenty".