1149819402 has 8 divisors (see below), whose sum is σ = 2299638816. Its totient is φ = 383273132.

The previous prime is 1149819389. The next prime is 1149819403. The reversal of 1149819402 is 2049189411.

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

1149819402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1149819403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95818278 + ... + 95818289.

It is an arithmetic number, because the mean of its divisors is an integer number (287454852).

Almost surely, 2^1149819402 is an apocalyptic number.

1149819402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1149819402 is a wasteful number, since it uses less digits than its factorization.

1149819402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191636572.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1149819402 is about 33908.9870388368. The cubic root of 1149819402 is about 1047.6347066373.

The spelling of 1149819402 in words is "one billion, one hundred forty-nine million, eight hundred nineteen thousand, four hundred two".