10542978 has 12 divisors (see below), whose sum is σ = 22843158. Its totient is φ = 3514320.

The previous prime is 10542953. The next prime is 10542989. The reversal of 10542978 is 87924501.

It can be written as a sum of positive squares in only one way, i.e., 5890329 + 4652649 = 2427^2 + 2157^2 .

It is a super-2 number, since 2×10542978² = 222308770216968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292843 + ... + 292878.

Almost surely, 2^10542978 is an apocalyptic number.

10542978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10542978 is an abundant number, since it is smaller than the sum of its proper divisors (12300180).

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

10542978 is a wasteful number, since it uses less digits than its factorization.

10542978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585729 (or 585726 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 10542978 is about 3246.9952263593. The cubic root of 10542978 is about 219.2743169121.

The spelling of 10542978 in words is "ten million, five hundred forty-two thousand, nine hundred seventy-eight".