1078377972 has 24 divisors (see below), whose sum is σ = 2875674816. Its totient is φ = 308107968.

The previous prime is 1078377943. The next prime is 1078378001. The reversal of 1078377972 is 2797738701.

It is an interprime number because it is at equal distance from previous prime (1078377943) and next prime (1078378001).

It is a congruent number.

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, 6418833 + ... + 6419000.

It is an arithmetic number, because the mean of its divisors is an integer number (119819784).

Almost surely, 2^1078377972 is an apocalyptic number.

1078377972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1078377972 is an abundant number, since it is smaller than the sum of its proper divisors (1797296844).

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

1078377972 is a wasteful number, since it uses less digits than its factorization.

1078377972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837847 (or 12837845 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 51.

The square root of 1078377972 is about 32838.6658072462. The cubic root of 1078377972 is about 1025.4716756773.

The spelling of 1078377972 in words is "one billion, seventy-eight million, three hundred seventy-seven thousand, nine hundred seventy-two".