1187950449 has 8 divisors (see below), whose sum is σ = 1810210240. Its totient is φ = 678828816.

The previous prime is 1187950447. The next prime is 1187950457. The reversal of 1187950449 is 9440597811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1187950449 - 2¹ = 1187950447 is a prime.

It is a super-2 number, since 2×1187950449² = 2822452538558603202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1187950398 and 1187950407.

It is not an unprimeable number, because it can be changed into a prime (1187950447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28284514 + ... + 28284555.

It is an arithmetic number, because the mean of its divisors is an integer number (226276280).

Almost surely, 2^1187950449 is an apocalyptic number.

It is an amenable number.

1187950449 is a deficient number, since it is larger than the sum of its proper divisors (622259791).

1187950449 is an equidigital number, since it uses as much as digits as its factorization.

1187950449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56569079.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 1187950449 is about 34466.6570615718. The cubic root of 1187950449 is about 1059.0897754528.

The spelling of 1187950449 in words is "one billion, one hundred eighty-seven million, nine hundred fifty thousand, four hundred forty-nine".