7200520146 has 24 divisors (see below), whose sum is σ = 15603370380. Its totient is φ = 2399828256.

The previous prime is 7200520123. The next prime is 7200520147. The reversal of 7200520146 is 6410250027.

It can be written as a sum of positive squares in 2 ways, for example, as 7195280625 + 5239521 = 84825^2 + 2289^2 .

It is a super-2 number, since 2×7200520146² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7200520147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120960 + ... + 170388.

Almost surely, 2^7200520146 is an apocalyptic number.

7200520146 is an abundant number, since it is smaller than the sum of its proper divisors (8402850234).

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

7200520146 is a wasteful number, since it uses less digits than its factorization.

7200520146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57530 (or 57527 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 7200520146 is about 84855.8786767305. The cubic root of 7200520146 is about 1931.0252676695.

The spelling of 7200520146 in words is "seven billion, two hundred million, five hundred twenty thousand, one hundred forty-six".