7421702472 has 48 divisors (see below), whose sum is σ = 20160155340. Its totient is φ = 2466551808.

The previous prime is 7421702441. The next prime is 7421702473. The reversal of 7421702472 is 2742071247.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6936557796 + 485144676 = 83286^2 + 22026^2 .

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 (7421702473) 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, 128673 + ... + 177200.

Almost surely, 2^7421702472 is an apocalyptic number.

7421702472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7421702472 is an abundant number, since it is smaller than the sum of its proper divisors (12738452868).

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

7421702472 is a wasteful number, since it uses less digits than its factorization.

7421702472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306222 (or 306215 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 7421702472 is about 86149.3033750128. The cubic root of 7421702472 is about 1950.5983236938.

The spelling of 7421702472 in words is "seven billion, four hundred twenty-one million, seven hundred two thousand, four hundred seventy-two".