1084025778 has 32 divisors (see below), whose sum is σ = 2429075520. Its totient is φ = 319613760.

The previous prime is 1084025777. The next prime is 1084025779. The reversal of 1084025778 is 8775204801.

It is an interprime number because it is at equal distance from previous prime (1084025777) and next prime (1084025779).

It is a super-2 number, since 2×1084025778² = 2350223774737010568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1084025777) 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, 219513 + ... + 224396.

It is an arithmetic number, because the mean of its divisors is an integer number (75908610).

Almost surely, 2^1084025778 is an apocalyptic number.

1084025778 is an abundant number, since it is smaller than the sum of its proper divisors (1345049742).

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

1084025778 is a wasteful number, since it uses less digits than its factorization.

1084025778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443962.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 1084025778 is about 32924.5467394769. The cubic root of 1084025778 is about 1027.2587990617.

The spelling of 1084025778 in words is "one billion, eighty-four million, twenty-five thousand, seven hundred seventy-eight".