7490154240 has 504 divisors, whose sum is σ = 28149559200. Its totient is φ = 1905057792.

The previous prime is 7490154239. The next prime is 7490154251. The reversal of 7490154240 is 424510947.

It is a happy number.

7490154240 is a `hidden beast` number, since 74 + 9 + 0 + 1 + 542 + 40 = 666.

It is a super-2 number, since 2×7490154240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7490154195 and 7490154204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 21461586 + ... + 21461934.

It is an arithmetic number, because the mean of its divisors is an integer number (55852300).

Almost surely, 2^7490154240 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 7490154240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14074779600).

7490154240 is an abundant number, since it is smaller than the sum of its proper divisors (20659404960).

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

7490154240 is an equidigital number, since it uses as much as digits as its factorization.

7490154240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 7490154240 is about 86545.6771884073. The cubic root of 7490154240 is about 1956.5768933321.

The spelling of 7490154240 in words is "seven billion, four hundred ninety million, one hundred fifty-four thousand, two hundred forty".