1040694819 has 16 divisors (see below), whose sum is σ = 1426222080. Its totient is φ = 674511840.

The previous prime is 1040694779. The next prime is 1040694859. The reversal of 1040694819 is 9184960401.

It is an interprime number because it is at equal distance from previous prime (1040694779) and next prime (1040694859).

It is not a de Polignac number, because 1040694819 - 2⁷ = 1040694691 is a prime.

It is a super-2 number, since 2×1040694819² = 2166091412586885522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1040694859) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 176814 + ... + 182604.

It is an arithmetic number, because the mean of its divisors is an integer number (89138880).

Almost surely, 2^1040694819 is an apocalyptic number.

1040694819 is a deficient number, since it is larger than the sum of its proper divisors (385527261).

1040694819 is a wasteful number, since it uses less digits than its factorization.

1040694819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7450.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1040694819 is about 32259.8019057774. The cubic root of 1040694819 is about 1013.3849825672.

The spelling of 1040694819 in words is "one billion, forty million, six hundred ninety-four thousand, eight hundred nineteen".