1195400380 has 12 divisors (see below), whose sum is σ = 2510340840. Its totient is φ = 478160144.

The previous prime is 1195400377. The next prime is 1195400383. The reversal of 1195400380 is 830045911.

It is an interprime number because it is at equal distance from previous prime (1195400377) and next prime (1195400383).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195400383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29884990 + ... + 29885029.

It is an arithmetic number, because the mean of its divisors is an integer number (209195070).

Almost surely, 2^1195400380 is an apocalyptic number.

1195400380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1195400380 is an abundant number, since it is smaller than the sum of its proper divisors (1314940460).

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

1195400380 is a wasteful number, since it uses less digits than its factorization.

1195400380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59770028 (or 59770026 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1195400380 is about 34574.5626147317. The cubic root of 1195400380 is about 1061.2991014105.

The spelling of 1195400380 in words is "one billion, one hundred ninety-five million, four hundred thousand, three hundred eighty".