3291009240 has 64 divisors (see below), whose sum is σ = 9914081760. Its totient is φ = 873953280.

The previous prime is 3291009229. The next prime is 3291009263. The reversal of 3291009240 is 429001923.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3291009198 and 3291009207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27979 + ... + 85818.

Almost surely, 2^3291009240 is an apocalyptic number.

3291009240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3291009240 is an abundant number, since it is smaller than the sum of its proper divisors (6623072520).

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

3291009240 is a wasteful number, since it uses less digits than its factorization.

3291009240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114052 (or 114048 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 3291009240 is about 57367.3185707681. The cubic root of 3291009240 is about 1487.4522531575.

The spelling of 3291009240 in words is "three billion, two hundred ninety-one million, nine thousand, two hundred forty".