7238778 has 16 divisors (see below), whose sum is σ = 14515200. Its totient is φ = 2406656.

The previous prime is 7238773. The next prime is 7238783. The reversal of 7238778 is 8778327.

It is an interprime number because it is at equal distance from previous prime (7238773) and next prime (7238783).

It is not an unprimeable number, because it can be changed into a prime (7238773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351 + ... + 4037.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^7238778 is an apocalyptic number.

7238778 is an abundant number, since it is smaller than the sum of its proper divisors (7276422).

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

7238778 is a wasteful number, since it uses less digits than its factorization.

7238778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141.

The product of its digits is 131712, while the sum is 42.

The square root of 7238778 is about 2690.4977234705. The cubic root of 7238778 is about 193.4439207453.

The spelling of 7238778 in words is "seven million, two hundred thirty-eight thousand, seven hundred seventy-eight".