3657424428 has 60 divisors (see below), whose sum is σ = 10927126672. Its totient is φ = 1044977760.

The previous prime is 3657424403. The next prime is 3657424439. The reversal of 3657424428 is 8244247563.

It is a happy number.

3657424428 is a `hidden beast` number, since 36 + 574 + 2 + 4 + 42 + 8 = 666.

It is a super-2 number, since 2×3657424428² = 26753506893062254368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 804043 + ... + 808578.

Almost surely, 2^3657424428 is an apocalyptic number.

It is an amenable number.

3657424428 is an abundant number, since it is smaller than the sum of its proper divisors (7269702244).

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

3657424428 is a wasteful number, since it uses less digits than its factorization.

3657424428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612644 (or 1612633 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The square root of 3657424428 is about 60476.6436568697. The cubic root of 3657424428 is about 1540.7249675955.

The spelling of 3657424428 in words is "three billion, six hundred fifty-seven million, four hundred twenty-four thousand, four hundred twenty-eight".