1175880420 has 216 divisors, whose sum is σ = 4223172408. Its totient is φ = 263070720.

The previous prime is 1175880413. The next prime is 1175880509. The reversal of 1175880420 is 240885711.

It can be written as a sum of positive squares in 4 ways, for example, as 51753636 + 1124126784 = 7194^2 + 33528^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 281064 + ... + 285216.

Almost surely, 2^1175880420 is an apocalyptic number.

1175880420 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 1175880420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111586204).

1175880420 is an abundant number, since it is smaller than the sum of its proper divisors (3047291988).

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

1175880420 is a wasteful number, since it uses less digits than its factorization.

1175880420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 1175880420 is about 34291.1128428344. The cubic root of 1175880420 is about 1055.4906397669.

The spelling of 1175880420 in words is "one billion, one hundred seventy-five million, eight hundred eighty thousand, four hundred twenty".