1042606690 has 16 divisors (see below), whose sum is σ = 1877975928. Its totient is φ = 416757376.

The previous prime is 1042606673. The next prime is 1042606709. The reversal of 1042606690 is 966062401.

1042606690 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 4 ways, for example, as 780587721 + 262018969 = 27939^2 + 16187^2 .

It is a super-2 number, since 2×1042606690² = 2174057420065512200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19987 + ... + 49846.

Almost surely, 2^1042606690 is an apocalyptic number.

1042606690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1042606690 is a deficient number, since it is larger than the sum of its proper divisors (835369238).

1042606690 is a wasteful number, since it uses less digits than its factorization.

1042606690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71333.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1042606690 is about 32289.4207132925. The cubic root of 1042606690 is about 1014.0051695457.

The spelling of 1042606690 in words is "one billion, forty-two million, six hundred six thousand, six hundred ninety".