1049156690 has 32 divisors (see below), whose sum is σ = 1938558960. Its totient is φ = 408672000.

The previous prime is 1049156681. The next prime is 1049156711. The reversal of 1049156690 is 966519401.

1049156690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 608954329 + 440202361 = 24677^2 + 20981^2 .

It is a super-2 number, since 2×1049156690² = 2201459520343512200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53096 + ... + 70124.

Almost surely, 2^1049156690 is an apocalyptic number.

1049156690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1049156690 is a deficient number, since it is larger than the sum of its proper divisors (889402270).

1049156690 is a wasteful number, since it uses less digits than its factorization.

1049156690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17198.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 1049156690 is about 32390.6883224176. The cubic root of 1049156690 is about 1016.1241768832.

The spelling of 1049156690 in words is "one billion, forty-nine million, one hundred fifty-six thousand, six hundred ninety".