3448574640 has 240 divisors, whose sum is σ = 13594421568. Its totient is φ = 766900224.

The previous prime is 3448574629. The next prime is 3448574653. The reversal of 3448574640 is 464758443.

3448574640 is a `hidden beast` number, since 34 + 4 + 8 + 574 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×3448574640² = 23785334095302259200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177234 + ... + 195726.

Almost surely, 2^3448574640 is an apocalyptic number.

3448574640 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 3448574640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6797210784).

3448574640 is an abundant number, since it is smaller than the sum of its proper divisors (10145846928).

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

3448574640 is a wasteful number, since it uses less digits than its factorization.

3448574640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18556 (or 18547 counting only the distinct ones).

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

The square root of 3448574640 is about 58724.5658987787. The cubic root of 3448574640 is about 1510.8216863197.

The spelling of 3448574640 in words is "three billion, four hundred forty-eight million, five hundred seventy-four thousand, six hundred forty".