3633442740 has 72 divisors (see below), whose sum is σ = 11028162600. Its totient is φ = 968327424.

The previous prime is 3633442693. The next prime is 3633442753. The reversal of 3633442740 is 472443363.

It can be written as a sum of positive squares in 4 ways, for example, as 790846884 + 2842595856 = 28122^2 + 53316^2 .

It is a super-2 number, since 2×3633442740² = 26403812289717415200, which contains 22 as substring.

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 = 3633442695 and 3633442704.

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, 345642 + ... + 355998.

It is an arithmetic number, because the mean of its divisors is an integer number (153168925).

Almost surely, 2^3633442740 is an apocalyptic number.

3633442740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3633442740 is an abundant number, since it is smaller than the sum of its proper divisors (7394719860).

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

3633442740 is a wasteful number, since it uses less digits than its factorization.

3633442740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12321 (or 12316 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 36.

The square root of 3633442740 is about 60278.0452569590. The cubic root of 3633442740 is about 1537.3500754068.

The spelling of 3633442740 in words is "three billion, six hundred thirty-three million, four hundred forty-two thousand, seven hundred forty".