2262978 has 40 divisors (see below), whose sum is σ = 5176380. Its totient is φ = 738720.

The previous prime is 2262977. The next prime is 2262979. The reversal of 2262978 is 8792622.

2262978 is a `hidden beast` number, since 22 + 629 + 7 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (2262977) and next prime (2262979).

It can be written as a sum of positive squares in 2 ways, for example, as 2259009 + 3969 = 1503^2 + 63^2 .

It is a d-powerful number, because it can be written as 2 + 2³ + 6⁸ + 2¹⁹ + 9⁵ + 7 + 8 .

It is not an unprimeable number, because it can be changed into a prime (2262971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9768 + ... + 9996.

2^2262978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2262978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2588190).

2262978 is an abundant number, since it is smaller than the sum of its proper divisors (2913402).

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

2262978 is a wasteful number, since it uses less digits than its factorization.

2262978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 295 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 2262978 is about 1504.3197798341. The cubic root of 2262978 is about 131.2885274650.

It can be divided in two parts, 2262 and 978, that added together give a triangular number (3240 = T₈₀).

The spelling of 2262978 in words is "two million, two hundred sixty-two thousand, nine hundred seventy-eight".