4245400642 has 8 divisors (see below), whose sum is σ = 7277829696. Its totient is φ = 1819457412.

The previous prime is 4245400597. The next prime is 4245400657. The reversal of 4245400642 is 2460045424.

It is a happy number.

4245400642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4245400642² = 36046853222188024328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151621438 + ... + 151621465.

It is an arithmetic number, because the mean of its divisors is an integer number (909728712).

Almost surely, 2^4245400642 is an apocalyptic number.

4245400642 is a deficient number, since it is larger than the sum of its proper divisors (3032429054).

4245400642 is a wasteful number, since it uses less digits than its factorization.

4245400642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303242912.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 4245400642 is about 65156.7390374933. The cubic root of 4245400642 is about 1619.2213707300.

The spelling of 4245400642 in words is "four billion, two hundred forty-five million, four hundred thousand, six hundred forty-two".