7452890 has 16 divisors (see below), whose sum is σ = 13446432. Its totient is φ = 2974224.

The previous prime is 7452877. The next prime is 7452901. The reversal of 7452890 is 982547.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7452890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7397 + ... + 8343.

It is an arithmetic number, because the mean of its divisors is an integer number (840402).

Almost surely, 2^7452890 is an apocalyptic number.

7452890 is a deficient number, since it is larger than the sum of its proper divisors (5993542).

7452890 is a wasteful number, since it uses less digits than its factorization.

7452890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 7452890 is about 2729.9981684976. The cubic root of 7452890 is about 195.3326777874.

The spelling of 7452890 in words is "seven million, four hundred fifty-two thousand, eight hundred ninety".