1127402220 has 96 divisors (see below), whose sum is σ = 3675829248. Its totient is φ = 252824832.

The previous prime is 1127402161. The next prime is 1127402303. The reversal of 1127402220 is 222047211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3064 + ... + 47583.

It is an arithmetic number, because the mean of its divisors is an integer number (38289888).

Almost surely, 2^1127402220 is an apocalyptic number.

1127402220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1127402220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1837914624).

1127402220 is an abundant number, since it is smaller than the sum of its proper divisors (2548427028).

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

1127402220 is a wasteful number, since it uses less digits than its factorization.

1127402220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50719 (or 50717 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1127402220 is about 33576.8107478956. The cubic root of 1127402220 is about 1040.7816547251.

Adding to 1127402220 its reverse (222047211), we get a palindrome (1349449431).

It can be divided in two parts, 112740 and 2220, that added together give a triangular number (114960 = T₄₇₉).

The spelling of 1127402220 in words is "one billion, one hundred twenty-seven million, four hundred two thousand, two hundred twenty".