1038226778 has 16 divisors (see below), whose sum is σ = 1584313344. Its totient is φ = 510199200.

The previous prime is 1038226759. The next prime is 1038226799. The reversal of 1038226778 is 8776228301.

It is a happy number.

It is a super-2 number, since 2×1038226778² = 2155829685112522568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8078 + ... + 46278.

It is an arithmetic number, because the mean of its divisors is an integer number (99019584).

Almost surely, 2^1038226778 is an apocalyptic number.

1038226778 is a deficient number, since it is larger than the sum of its proper divisors (546086566).

1038226778 is a wasteful number, since it uses less digits than its factorization.

1038226778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38437.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 1038226778 is about 32221.5266242926. The cubic root of 1038226778 is about 1012.5832568432.

The spelling of 1038226778 in words is "one billion, thirty-eight million, two hundred twenty-six thousand, seven hundred seventy-eight".