7354470640 has 160 divisors (see below), whose sum is σ = 19992220416. Its totient is φ = 2486292480.

The previous prime is 7354470611. The next prime is 7354470667. The reversal of 7354470640 is 460744537.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 7354470593 and 7354470602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1238719 + ... + 1244641.

Almost surely, 2^7354470640 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 7354470640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9996110208).

7354470640 is an abundant number, since it is smaller than the sum of its proper divisors (12637749776).

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

7354470640 is a wasteful number, since it uses less digits than its factorization.

7354470640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047 (or 6041 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 40.

The square root of 7354470640 is about 85758.2103358040. The cubic root of 7354470640 is about 1944.6904114012.

The spelling of 7354470640 in words is "seven billion, three hundred fifty-four million, four hundred seventy thousand, six hundred forty".