1045249738 has 16 divisors (see below), whose sum is σ = 1698247656. Its totient is φ = 479632320.

The previous prime is 1045249727. The next prime is 1045249747. The reversal of 1045249738 is 8379425401.

It can be written as a sum of positive squares in 4 ways, for example, as 661364089 + 383885649 = 25717^2 + 19593^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1045249694 and 1045249703.

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, 111693 + ... + 120688.

Almost surely, 2^1045249738 is an apocalyptic number.

1045249738 is a deficient number, since it is larger than the sum of its proper divisors (652997918).

1045249738 is a wasteful number, since it uses less digits than its factorization.

1045249738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232569.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1045249738 is about 32330.3222687309. The cubic root of 1045249738 is about 1014.8612938658.

The spelling of 1045249738 in words is "one billion, forty-five million, two hundred forty-nine thousand, seven hundred thirty-eight".