7453890 has 64 divisors (see below), whose sum is σ = 20937600. Its totient is φ = 1881792.

The previous prime is 7453879. The next prime is 7453891. The reversal of 7453890 is 983547.

It is a super-2 number, since 2×7453890² = 111120952264200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7453891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4404 + ... + 5856.

It is an arithmetic number, because the mean of its divisors is an integer number (327150).

Almost surely, 2^7453890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7453890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10468800).

7453890 is an abundant number, since it is smaller than the sum of its proper divisors (13483710).

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

7453890 is a wasteful number, since it uses less digits than its factorization.

7453890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 7453890 is about 2730.1813126604. The cubic root of 7453890 is about 195.3414137248.

The spelling of 7453890 in words is "seven million, four hundred fifty-three thousand, eight hundred ninety".