1045599744 has 160 divisors (see below), whose sum is σ = 3287218176. Its totient is φ = 289013760.

The previous prime is 1045599707. The next prime is 1045599769. The reversal of 1045599744 is 4479955401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1045599693 and 1045599702.

It is a congruent number.

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, 331744 + ... + 334880.

Almost surely, 2^1045599744 is an apocalyptic number.

1045599744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045599744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643609088).

1045599744 is an abundant number, since it is smaller than the sum of its proper divisors (2241618432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045599744 is an equidigital number, since it uses as much as digits as its factorization.

1045599744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196 (or 3180 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 1045599744 is about 32335.7347836724. The cubic root of 1045599744 is about 1014.9745579943.

The spelling of 1045599744 in words is "one billion, forty-five million, five hundred ninety-nine thousand, seven hundred forty-four".