7148420 has 12 divisors (see below), whose sum is σ = 15011724. Its totient is φ = 2859360.

The previous prime is 7148419. The next prime is 7148429. The reversal of 7148420 is 248417.

It can be written as a sum of positive squares in 2 ways, for example, as 2334784 + 4813636 = 1528^2 + 2194^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7148420.

It is not an unprimeable number, because it can be changed into a prime (7148429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178691 + ... + 178730.

It is an arithmetic number, because the mean of its divisors is an integer number (1250977).

Almost surely, 2^7148420 is an apocalyptic number.

It is an amenable number.

7148420 is an abundant number, since it is smaller than the sum of its proper divisors (7863304).

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

7148420 is a wasteful number, since it uses less digits than its factorization.

7148420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357430 (or 357428 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 7148420 is about 2673.6529318519. The cubic root of 7148420 is about 192.6356608244.

The spelling of 7148420 in words is "seven million, one hundred forty-eight thousand, four hundred twenty".