42899450 has 24 divisors (see below), whose sum is σ = 87048000. Its totient is φ = 15599600.

The previous prime is 42899411. The next prime is 42899453. The reversal of 42899450 is 5499824.

It is a junction number, because it is equal to n+sod(n) for n = 42899398 and 42899407.

It is not an unprimeable number, because it can be changed into a prime (42899453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38450 + ... + 39549.

It is an arithmetic number, because the mean of its divisors is an integer number (3627000).

Almost surely, 2^42899450 is an apocalyptic number.

42899450 is an abundant number, since it is smaller than the sum of its proper divisors (44148550).

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

42899450 is a wasteful number, since it uses less digits than its factorization.

42899450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78022 (or 78017 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 42899450 is about 6549.7671714344. The cubic root of 42899450 is about 350.0665179696.

The spelling of 42899450 in words is "forty-two million, eight hundred ninety-nine thousand, four hundred fifty".