3622635540 has 72 divisors (see below), whose sum is σ = 10993600800. Its totient is φ = 965601984.

The previous prime is 3622635517. The next prime is 3622635559. The reversal of 3622635540 is 455362263.

3622635540 is a `hidden beast` number, since 3 + 62 + 26 + 35 + 540 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 3622635495 and 3622635504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707911 + ... + 713009.

It is an arithmetic number, because the mean of its divisors is an integer number (152688900).

Almost surely, 2^3622635540 is an apocalyptic number.

3622635540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3622635540 is an abundant number, since it is smaller than the sum of its proper divisors (7370965260).

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

3622635540 is a wasteful number, since it uses less digits than its factorization.

3622635540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9061 (or 9056 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 3622635540 is about 60188.3339194565. Note that the first 3 decimals coincide. The cubic root of 3622635540 is about 1535.8243461650.

The spelling of 3622635540 in words is "three billion, six hundred twenty-two million, six hundred thirty-five thousand, five hundred forty".