1045690 has 16 divisors (see below), whose sum is σ = 1918728. Its totient is φ = 410176.

The previous prime is 1045679. The next prime is 1045691. The reversal of 1045690 is 965401.

It can be written as a sum of positive squares in 4 ways, for example, as 804609 + 241081 = 897^2 + 491^2 .

It is a super-2 number, since 2×1045690² = 2186935152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1045691) 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, 457 + ... + 1516.

2^1045690 is an apocalyptic number.

1045690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1045690 is a deficient number, since it is larger than the sum of its proper divisors (873038).

1045690 is a wasteful number, since it uses less digits than its factorization.

1045690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1045690 is about 1022.5898493531. The cubic root of 1045690 is about 101.5003761300.

The spelling of 1045690 in words is "one million, forty-five thousand, six hundred ninety".