7249878 has 16 divisors (see below), whose sum is σ = 16110960. Its totient is φ = 2416608.

The previous prime is 7249873. The next prime is 7249889. The reversal of 7249878 is 8789427.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7249873) 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, 67075 + ... + 67182.

It is an arithmetic number, because the mean of its divisors is an integer number (1006935).

Almost surely, 2^7249878 is an apocalyptic number.

7249878 is an abundant number, since it is smaller than the sum of its proper divisors (8861082).

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

7249878 is a wasteful number, since it uses less digits than its factorization.

7249878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134268 (or 134262 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 7249878 is about 2692.5597486407. The cubic root of 7249878 is about 193.5427464001.

The spelling of 7249878 in words is "seven million, two hundred forty-nine thousand, eight hundred seventy-eight".