42457700 has 18 divisors (see below), whose sum is σ = 92133426. Its totient is φ = 16983040.

The previous prime is 42457697. The next prime is 42457703. The reversal of 42457700 is 775424.

42457700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42457697) and next prime (42457703).

It can be written as a sum of positive squares in 3 ways, for example, as 1420864 + 41036836 = 1192^2 + 6406^2 .

It is not an unprimeable number, because it can be changed into a prime (42457703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212189 + ... + 212388.

Almost surely, 2^42457700 is an apocalyptic number.

It is an amenable number.

42457700 is an abundant number, since it is smaller than the sum of its proper divisors (49675726).

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

42457700 is a wasteful number, since it uses less digits than its factorization.

42457700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424591 (or 424584 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 42457700 is about 6515.9573356492. The cubic root of 42457700 is about 348.8607857933.

The spelling of 42457700 in words is "forty-two million, four hundred fifty-seven thousand, seven hundred".