7454120742 has 48 divisors (see below), whose sum is σ = 16782227280. Its totient is φ = 2479743072.

The previous prime is 7454120741. The next prime is 7454120759. The reversal of 7454120742 is 2470214547.

7454120742 is a `hidden beast` number, since 74 + 541 + 2 + 0 + 7 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7454120697 and 7454120706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7454120741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232308 + ... + 262440.

It is an arithmetic number, because the mean of its divisors is an integer number (349629735).

Almost surely, 2^7454120742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7454120742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8391113640).

7454120742 is an abundant number, since it is smaller than the sum of its proper divisors (9328106538).

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

7454120742 is a wasteful number, since it uses less digits than its factorization.

7454120742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30659 (or 30647 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The square root of 7454120742 is about 86337.2500256986. The cubic root of 7454120742 is about 1953.4342936151.

The spelling of 7454120742 in words is "seven billion, four hundred fifty-four million, one hundred twenty thousand, seven hundred forty-two".