1161374400 has 126 divisors (see below), whose sum is σ = 4127850012. Its totient is φ = 309696000.

The previous prime is 1161374387. The next prime is 1161374407. The reversal of 1161374400 is 44731611.

It is a happy number.

1161374400 is a `hidden beast` number, since 1 + 1 + 613 + 7 + 4 + 40 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (1161374407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25926 + ... + 54725.

Almost surely, 2^1161374400 is an apocalyptic number.

1161374400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161374400 is an abundant number, since it is smaller than the sum of its proper divisors (2966475612).

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

1161374400 is a wasteful number, since it uses less digits than its factorization.

1161374400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80679 (or 80661 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1161374400 is about 34078.9436456003. The cubic root of 1161374400 is about 1051.1323837717.

The spelling of 1161374400 in words is "one billion, one hundred sixty-one million, three hundred seventy-four thousand, four hundred".