1045958978 has 4 divisors (see below), whose sum is σ = 1568938470. Its totient is φ = 522979488.

The previous prime is 1045958951. The next prime is 1045958981. The reversal of 1045958978 is 8798595401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8798595401 = 62969 ⋅139729.

It can be written as a sum of positive squares in only one way, i.e., 849314449 + 196644529 = 29143^2 + 14023^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261489743 + ... + 261489746.

Almost surely, 2^1045958978 is an apocalyptic number.

1045958978 is a deficient number, since it is larger than the sum of its proper divisors (522979492).

1045958978 is an equidigital number, since it uses as much as digits as its factorization.

1045958978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522979491.

The product of its (nonzero) digits is 3628800, while the sum is 56.

The square root of 1045958978 is about 32341.2890590341. The cubic root of 1045958978 is about 1015.0907820797.

The spelling of 1045958978 in words is "one billion, forty-five million, nine hundred fifty-eight thousand, nine hundred seventy-eight".