7945980 has 48 divisors (see below), whose sum is σ = 25428480. Its totient is φ = 1816128.

The previous prime is 7945979. The next prime is 7945981. The reversal of 7945980 is 895497.

7945980 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7945979) and next prime (7945981).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7945981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9040 + ... + 9879.

It is an arithmetic number, because the mean of its divisors is an integer number (529760).

Almost surely, 2^7945980 is an apocalyptic number.

7945980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7945980 is an abundant number, since it is smaller than the sum of its proper divisors (17482500).

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

7945980 is a wasteful number, since it uses less digits than its factorization.

7945980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18938 (or 18936 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 7945980 is about 2818.8614722969. The cubic root of 7945980 is about 199.5488162649.

The spelling of 7945980 in words is "seven million, nine hundred forty-five thousand, nine hundred eighty".