1070400778 has 8 divisors (see below), whose sum is σ = 1608385572. Its totient is φ = 534272256.

The previous prime is 1070400761. The next prime is 1070400781. The reversal of 1070400778 is 8770040701.

1070400778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 844890489 + 225510289 = 29067^2 + 15017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1070400778² = 2291515651086010568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462625 + ... + 464932.

Almost surely, 2^1070400778 is an apocalyptic number.

1070400778 is a deficient number, since it is larger than the sum of its proper divisors (537984794).

1070400778 is an equidigital number, since it uses as much as digits as its factorization.

1070400778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928136.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 1070400778 is about 32716.9799645383. The cubic root of 1070400778 is about 1022.9368065750.

The spelling of 1070400778 in words is "one billion, seventy million, four hundred thousand, seven hundred seventy-eight".