7263990 has 48 divisors (see below), whose sum is σ = 19335888. Its totient is φ = 1891008.

The previous prime is 7263989. The next prime is 7264003. The reversal of 7263990 is 993627.

It is a zygodrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2932 + ... + 4808.

It is an arithmetic number, because the mean of its divisors is an integer number (402831).

Almost surely, 2^7263990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7263990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9667944).

7263990 is an abundant number, since it is smaller than the sum of its proper divisors (12071898).

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

7263990 is a wasteful number, since it uses less digits than its factorization.

7263990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 7263990 is about 2695.1790293040. The cubic root of 7263990 is about 193.6682429944.

The spelling of 7263990 in words is "seven million, two hundred sixty-three thousand, nine hundred ninety".