7240485420 has 144 divisors (see below), whose sum is σ = 26421507840. Its totient is φ = 1567859328.

The previous prime is 7240485379. The next prime is 7240485431. The reversal of 7240485420 is 245840427.

7240485420 is a `hidden beast` number, since 72 + 4 + 0 + 48 + 542 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127282 + ... + 175161.

Almost surely, 2^7240485420 is an apocalyptic number.

7240485420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7240485420 is an abundant number, since it is smaller than the sum of its proper divisors (19181022420).

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

7240485420 is a wasteful number, since it uses less digits than its factorization.

7240485420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302484 (or 302479 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 7240485420 is about 85091.0419491970. The cubic root of 7240485420 is about 1934.5912883949.

The spelling of 7240485420 in words is "seven billion, two hundred forty million, four hundred eighty-five thousand, four hundred twenty".