4252778 has 8 divisors (see below), whose sum is σ = 6388068. Its totient is φ = 2123424.

The previous prime is 4252777. The next prime is 4252793. The reversal of 4252778 is 8772524.

It can be written as a sum of positive squares in 2 ways, for example, as 2900209 + 1352569 = 1703^2 + 1163^2 .

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

It is a super-2 number, since 2×4252778² = 36172241434568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4252777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550 + ... + 3302.

Almost surely, 2^4252778 is an apocalyptic number.

4252778 is a deficient number, since it is larger than the sum of its proper divisors (2135290).

4252778 is a wasteful number, since it uses less digits than its factorization.

4252778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968.

The product of its digits is 31360, while the sum is 35.

The square root of 4252778 is about 2062.2264667102. The cubic root of 4252778 is about 162.0158750891.

The spelling of 4252778 in words is "four million, two hundred fifty-two thousand, seven hundred seventy-eight".