7234644690 has 288 divisors, whose sum is σ = 24018963696. Its totient is φ = 1497000960.

The previous prime is 7234644689. The next prime is 7234644749. The reversal of 7234644690 is 964464327.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 461519289 + 6773125401 = 21483^2 + 82299^2 .

It is a super-2 number, since 2×7234644690² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3037300 + ... + 3039680.

Almost surely, 2^7234644690 is an apocalyptic number.

7234644690 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 7234644690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12009481848).

7234644690 is an abundant number, since it is smaller than the sum of its proper divisors (16784319006).

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

7234644690 is a wasteful number, since it uses less digits than its factorization.

7234644690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2464 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 7234644690 is about 85056.7145497638. The cubic root of 7234644690 is about 1934.0709519621.

The spelling of 7234644690 in words is "seven billion, two hundred thirty-four million, six hundred forty-four thousand, six hundred ninety".