7144992 has 36 divisors (see below), whose sum is σ = 20319390. Its totient is φ = 2381568.

The previous prime is 7144979. The next prime is 7144999. The reversal of 7144992 is 2994417.

It can be written as a sum of positive squares in only one way, i.e., 4822416 + 2322576 = 2196^2 + 1524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7144999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12117 + ... + 12692.

Almost surely, 2^7144992 is an apocalyptic number.

7144992 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7144992 is an abundant number, since it is smaller than the sum of its proper divisors (13174398).

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

7144992 is a wasteful number, since it uses less digits than its factorization.

7144992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24825 (or 24814 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 7144992 is about 2673.0117844858. The cubic root of 7144992 is about 192.6048633134.

The spelling of 7144992 in words is "seven million, one hundred forty-four thousand, nine hundred ninety-two".