1049442978 has 32 divisors (see below), whose sum is σ = 2162578176. Its totient is φ = 339331328.

The previous prime is 1049442973. The next prime is 1049443027. The reversal of 1049442978 is 8792449401.

It is a super-2 number, since 2×1049442978² = 2202661128147016968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1049442973) 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, 15400 + ... + 48332.

It is an arithmetic number, because the mean of its divisors is an integer number (67580568).

Almost surely, 2^1049442978 is an apocalyptic number.

1049442978 is an abundant number, since it is smaller than the sum of its proper divisors (1113135198).

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

1049442978 is a wasteful number, since it uses less digits than its factorization.

1049442978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33098.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1049442978 is about 32395.1073157661. The cubic root of 1049442978 is about 1016.2165932353.

The spelling of 1049442978 in words is "one billion, forty-nine million, four hundred forty-two thousand, nine hundred seventy-eight".