7436992644 has 63 divisors (see below), whose sum is σ = 19525405557. Its totient is φ = 2477445264.

The previous prime is 7436992573. The next prime is 7436992687. The reversal of 7436992644 is 4462996347.

The square root of 7436992644 is 86238.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1490732100 + 5946260544 = 38610^2 + 77112^2 .

It is a super-2 number, since 2×7436992644² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 4656054 + ... + 4657650.

Almost surely, 2^7436992644 is an apocalyptic number.

7436992644 is the 86238-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7436992644

7436992644 is an abundant number, since it is smaller than the sum of its proper divisors (12088412913).

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

7436992644 is an frugal number, since it uses more digits than its factorization.

7436992644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216 (or 1602 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The cubic root of 7436992644 is about 1951.9369440266.

The spelling of 7436992644 in words is "seven billion, four hundred thirty-six million, nine hundred ninety-two thousand, six hundred forty-four".