7949140 has 24 divisors (see below), whose sum is σ = 16773120. Its totient is φ = 3164448.

The previous prime is 7949119. The next prime is 7949141. The reversal of 7949140 is 419497.

It is a junction number, because it is equal to n+sod(n) for n = 7949096 and 7949105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7949141) 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, 3949 + ... + 5611.

It is an arithmetic number, because the mean of its divisors is an integer number (698880).

Almost surely, 2^7949140 is an apocalyptic number.

It is an amenable number.

7949140 is an abundant number, since it is smaller than the sum of its proper divisors (8823980).

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

7949140 is a wasteful number, since it uses less digits than its factorization.

7949140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 7949140 is about 2819.4219265658. The cubic root of 7949140 is about 199.5752653074.

The spelling of 7949140 in words is "seven million, nine hundred forty-nine thousand, one hundred forty".