1040212044 has 72 divisors (see below), whose sum is σ = 2739609600. Its totient is φ = 345110544.

The previous prime is 1040212009. The next prime is 1040212073. The reversal of 1040212044 is 4402120401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214357 + ... + 219155.

Almost surely, 2^1040212044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040212044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1369804800).

1040212044 is an abundant number, since it is smaller than the sum of its proper divisors (1699397556).

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

1040212044 is a wasteful number, since it uses less digits than its factorization.

1040212044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041 (or 5027 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1040212044 is about 32252.3184282929. The cubic root of 1040212044 is about 1013.2282563117.

Adding to 1040212044 its reverse (4402120401), we get a palindrome (5442332445).

The spelling of 1040212044 in words is "one billion, forty million, two hundred twelve thousand, forty-four".