7474872 has 16 divisors (see below), whose sum is σ = 18687240. Its totient is φ = 2491616.

The previous prime is 7474871. The next prime is 7474877. The reversal of 7474872 is 2784747.

It is a super-2 number, since 2×7474872² = 111747422832768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7474872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7474871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155703 + ... + 155750.

Almost surely, 2^7474872 is an apocalyptic number.

It is an amenable number.

7474872 is an abundant number, since it is smaller than the sum of its proper divisors (11212368).

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

7474872 is a wasteful number, since it uses less digits than its factorization.

7474872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311462 (or 311458 counting only the distinct ones).

The product of its digits is 87808, while the sum is 39.

The square root of 7474872 is about 2734.0212142557. The cubic root of 7474872 is about 195.5245312545.

Adding to 7474872 its sum of digits (39), we get a triangular number (7474911 = T₃₈₆₆).

The spelling of 7474872 in words is "seven million, four hundred seventy-four thousand, eight hundred seventy-two".