7420532540 has 48 divisors (see below), whose sum is σ = 15681974112. Its totient is φ = 2949447936.

The previous prime is 7420532533. The next prime is 7420532549. The reversal of 7420532540 is 452350247.

It is a junction number, because it is equal to n+sod(n) for n = 7420532497 and 7420532506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420532549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2198294 + ... + 2201666.

It is an arithmetic number, because the mean of its divisors is an integer number (326707794).

Almost surely, 2^7420532540 is an apocalyptic number.

It is an amenable number.

7420532540 is an abundant number, since it is smaller than the sum of its proper divisors (8261441572).

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

7420532540 is a wasteful number, since it uses less digits than its factorization.

7420532540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 7420532540 is about 86142.5129654342. The cubic root of 7420532540 is about 1950.4958230735.

Adding to 7420532540 its reverse (452350247), we get a palindrome (7872882787).

The spelling of 7420532540 in words is "seven billion, four hundred twenty million, five hundred thirty-two thousand, five hundred forty".