1019788294 has 12 divisors (see below), whose sum is σ = 1779426684. Its totient is φ = 437052084.

The previous prime is 1019788291. The next prime is 1019788303. The reversal of 1019788294 is 4928879101.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019788291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5202904 + ... + 5203099.

It is an arithmetic number, because the mean of its divisors is an integer number (148285557).

Almost surely, 2^1019788294 is an apocalyptic number.

1019788294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1019788294 is a deficient number, since it is larger than the sum of its proper divisors (759638390).

1019788294 is a wasteful number, since it uses less digits than its factorization.

1019788294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406019 (or 10406012 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 1019788294 is about 31934.1242873513. The cubic root of 1019788294 is about 1006.5530615820.

The spelling of 1019788294 in words is "one billion, nineteen million, seven hundred eighty-eight thousand, two hundred ninety-four".