1049690438 has 16 divisors (see below), whose sum is σ = 1640731680. Its totient is φ = 503044416.

The previous prime is 1049690431. The next prime is 1049690443. The reversal of 1049690438 is 8340969401.

It is a super-2 number, since 2×1049690438² = 2203700031257263688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049690431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58106 + ... + 73997.

It is an arithmetic number, because the mean of its divisors is an integer number (102545730).

Almost surely, 2^1049690438 is an apocalyptic number.

1049690438 is a deficient number, since it is larger than the sum of its proper divisors (591041242).

1049690438 is a wasteful number, since it uses less digits than its factorization.

1049690438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132271.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1049690438 is about 32398.9264945615. The cubic root of 1049690438 is about 1016.2964620165.

The spelling of 1049690438 in words is "one billion, forty-nine million, six hundred ninety thousand, four hundred thirty-eight".