7390878 has 32 divisors (see below), whose sum is σ = 16284672. Its totient is φ = 2217600.

The previous prime is 7390819. The next prime is 7390907. The reversal of 7390878 is 8780937.

7390878 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7390878² = 109250155221768, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6963 + ... + 7953.

It is an arithmetic number, because the mean of its divisors is an integer number (508896).

Almost surely, 2^7390878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7390878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8142336).

7390878 is an abundant number, since it is smaller than the sum of its proper divisors (8893794).

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

7390878 is a wasteful number, since it uses less digits than its factorization.

7390878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 7390878 is about 2718.6169277778. The cubic root of 7390878 is about 194.7894110535.

It can be divided in two parts, 73 and 90878, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 7390878 in words is "seven million, three hundred ninety thousand, eight hundred seventy-eight".