1074428820 has 48 divisors (see below), whose sum is σ = 3342669120. Its totient is φ = 286514208.

The previous prime is 1074428791. The next prime is 1074428827. The reversal of 1074428820 is 288244701.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1074428827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994302 + ... + 995381.

It is an arithmetic number, because the mean of its divisors is an integer number (69638940).

Almost surely, 2^1074428820 is an apocalyptic number.

1074428820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1074428820 is an abundant number, since it is smaller than the sum of its proper divisors (2268240300).

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

1074428820 is a wasteful number, since it uses less digits than its factorization.

1074428820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989701 (or 1989693 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 1074428820 is about 32778.4810508358. The cubic root of 1074428820 is about 1024.2183435870.

The spelling of 1074428820 in words is "one billion, seventy-four million, four hundred twenty-eight thousand, eight hundred twenty".