1049400828 has 36 divisors (see below), whose sum is σ = 3031603120. Its totient is φ = 299828736.

The previous prime is 1049400827. The next prime is 1049400839. The reversal of 1049400828 is 8280049401.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1049400828² = 2202484195614171168, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1049400792 and 1049400801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049400827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2081893 + ... + 2082396.

Almost surely, 2^1049400828 is an apocalyptic number.

1049400828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1049400828 is an abundant number, since it is smaller than the sum of its proper divisors (1982202292).

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

1049400828 is a wasteful number, since it uses less digits than its factorization.

1049400828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164306 (or 4164301 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1049400828 is about 32394.4567480302. The cubic root of 1049400828 is about 1016.2029878898.

The spelling of 1049400828 in words is "one billion, forty-nine million, four hundred thousand, eight hundred twenty-eight".