1187378048 has 16 divisors (see below), whose sum is σ = 2365479960. Its totient is φ = 593688960.

The previous prime is 1187378029. The next prime is 1187378131. The reversal of 1187378048 is 8408737811.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1187377993 and 1187378011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4638068 + ... + 4638323.

Almost surely, 2^1187378048 is an apocalyptic number.

It is an amenable number.

1187378048 is a deficient number, since it is larger than the sum of its proper divisors (1178101912).

1187378048 is an frugal number, since it uses more digits than its factorization.

1187378048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276405 (or 9276393 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 47.

The square root of 1187378048 is about 34458.3523692007. The cubic root of 1187378048 is about 1058.9196444959.

The spelling of 1187378048 in words is "one billion, one hundred eighty-seven million, three hundred seventy-eight thousand, forty-eight".