7734090 has 64 divisors (see below), whose sum is σ = 22853376. Its totient is φ = 1631232.

The previous prime is 7734029. The next prime is 7734091. The reversal of 7734090 is 904377.

It is a super-2 number, since 2×7734090² = 119632296256200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (7734091) 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, 1314 + ... + 4146.

It is an arithmetic number, because the mean of its divisors is an integer number (357084).

Almost surely, 2^7734090 is an apocalyptic number.

7734090 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7734090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11426688).

7734090 is an abundant number, since it is smaller than the sum of its proper divisors (15119286).

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

7734090 is a wasteful number, since it uses less digits than its factorization.

7734090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 7734090 is about 2781.0231929993. The cubic root of 7734090 is about 197.7590682363.

The spelling of 7734090 in words is "seven million, seven hundred thirty-four thousand, ninety".