3547238940 has 192 divisors, whose sum is σ = 13161093120. Its totient is φ = 775526400.

The previous prime is 3547238911. The next prime is 3547238941. The reversal of 3547238940 is 498327453.

3547238940 is a `hidden beast` number, since 3 + 547 + 23 + 89 + 4 + 0 = 666.

3547238940 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3547238941) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66540 + ... + 107340.

It is an arithmetic number, because the mean of its divisors is an integer number (68547360).

Almost surely, 2^3547238940 is an apocalyptic number.

3547238940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3547238940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6580546560).

3547238940 is an abundant number, since it is smaller than the sum of its proper divisors (9613854180).

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

3547238940 is a wasteful number, since it uses less digits than its factorization.

3547238940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40849 (or 40841 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 3547238940 is about 59558.7016312478. The cubic root of 3547238940 is about 1525.0947091588.

The spelling of 3547238940 in words is "three billion, five hundred forty-seven million, two hundred thirty-eight thousand, nine hundred forty".