1045186490 has 16 divisors (see below), whose sum is σ = 1882656648. Its totient is φ = 417781056.

The previous prime is 1045186451. The next prime is 1045186501. The reversal of 1045186490 is 946815401.

It can be written as a sum of positive squares in 4 ways, for example, as 802418929 + 242767561 = 28327^2 + 15581^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21437 + ... + 50496.

Almost surely, 2^1045186490 is an apocalyptic number.

1045186490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1045186490 is a deficient number, since it is larger than the sum of its proper divisors (837470158).

1045186490 is a wasteful number, since it uses less digits than its factorization.

1045186490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73393.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1045186490 is about 32329.3441009866. The cubic root of 1045186490 is about 1014.8408237206.

The spelling of 1045186490 in words is "one billion, forty-five million, one hundred eighty-six thousand, four hundred ninety".