42097700 has 18 divisors (see below), whose sum is σ = 91352226. Its totient is φ = 16839040.

The previous prime is 42097697. The next prime is 42097723. The reversal of 42097700 is 779024.

It can be written as a sum of positive squares in 3 ways, for example, as 10445824 + 31651876 = 3232^2 + 5626^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210389 + ... + 210588.

Almost surely, 2^42097700 is an apocalyptic number.

It is an amenable number.

42097700 is an abundant number, since it is smaller than the sum of its proper divisors (49254526).

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

42097700 is a wasteful number, since it uses less digits than its factorization.

42097700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420991 (or 420984 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 42097700 is about 6488.2740386023. The cubic root of 42097700 is about 347.8719857681.

The spelling of 42097700 in words is "forty-two million, ninety-seven thousand, seven hundred".