1040690494 has 8 divisors (see below), whose sum is σ = 1561515480. Its totient is φ = 520185336.

The previous prime is 1040690467. The next prime is 1040690501. The reversal of 1040690494 is 4940960401.

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

It is a super-3 number, since 3×1040690494³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71649 + ... + 84940.

It is an arithmetic number, because the mean of its divisors is an integer number (195189435).

Almost surely, 2^1040690494 is an apocalyptic number.

1040690494 is a deficient number, since it is larger than the sum of its proper divisors (520824986).

1040690494 is a wasteful number, since it uses less digits than its factorization.

1040690494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159914.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1040690494 is about 32259.7348718182. The cubic root of 1040690494 is about 1013.3835787307.

The spelling of 1040690494 in words is "one billion, forty million, six hundred ninety thousand, four hundred ninety-four".