7428753940 has 24 divisors (see below), whose sum is σ = 15797859840. Its totient is φ = 2933887008.

The previous prime is 7428753907. The next prime is 7428753991. The reversal of 7428753940 is 493578247.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349292 + ... + 2352451.

It is an arithmetic number, because the mean of its divisors is an integer number (658244160).

Almost surely, 2^7428753940 is an apocalyptic number.

It is an amenable number.

7428753940 is an abundant number, since it is smaller than the sum of its proper divisors (8369105900).

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

7428753940 is a wasteful number, since it uses less digits than its factorization.

7428753940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701831 (or 4701829 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 7428753940 is about 86190.2195147454. The cubic root of 7428753940 is about 1951.2158921411.

The spelling of 7428753940 in words is "seven billion, four hundred twenty-eight million, seven hundred fifty-three thousand, nine hundred forty".