1870949494 has 16 divisors (see below), whose sum is σ = 2973703680. Its totient is φ = 880367400.

The previous prime is 1870949489. The next prime is 1870949519. The reversal of 1870949494 is 4949490781.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 157294 + ... + 168769.

It is an arithmetic number, because the mean of its divisors is an integer number (185856480).

Almost surely, 2^1870949494 is an apocalyptic number.

1870949494 is a deficient number, since it is larger than the sum of its proper divisors (1102754186).

1870949494 is a wasteful number, since it uses less digits than its factorization.

1870949494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326235.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 1870949494 is about 43254.4736877008. The cubic root of 1870949494 is about 1232.2174497233.

The spelling of 1870949494 in words is "one billion, eight hundred seventy million, nine hundred forty-nine thousand, four hundred ninety-four".