7405986240 has 168 divisors, whose sum is σ = 25515161568. Its totient is φ = 1971701760.

The previous prime is 7405986239. The next prime is 7405986257. The reversal of 7405986240 is 426895047.

It is a happy number.

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

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, 2138110 + ... + 2141570.

Almost surely, 2^7405986240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7405986240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12757580784).

7405986240 is an abundant number, since it is smaller than the sum of its proper divisors (18109175328).

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

7405986240 is a wasteful number, since it uses less digits than its factorization.

7405986240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227 (or 4214 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 7405986240 is about 86058.0399497920. The cubic root of 7405986240 is about 1949.2204852738.

The spelling of 7405986240 in words is "seven billion, four hundred five million, nine hundred eighty-six thousand, two hundred forty".