3674387520 has 84 divisors (see below), whose sum is σ = 12638371980. Its totient is φ = 979835904.

The previous prime is 3674387513. The next prime is 3674387533. The reversal of 3674387520 is 257834763.

3674387520 is a `hidden beast` number, since 3 + 6 + 7 + 43 + 87 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2147766336 + 1526621184 = 46344^2 + 39072^2 .

It is a super-2 number, since 2×3674387520² = 27002247294263500800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635035 + ... + 640794.

Almost surely, 2^3674387520 is an apocalyptic number.

3674387520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3674387520 is an abundant number, since it is smaller than the sum of its proper divisors (8963984460).

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

3674387520 is a wasteful number, since it uses less digits than its factorization.

3674387520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275852 (or 1275839 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 3674387520 is about 60616.7264045164. The cubic root of 3674387520 is about 1543.1032493943.

The spelling of 3674387520 in words is "three billion, six hundred seventy-four million, three hundred eighty-seven thousand, five hundred twenty".