42670994 has 4 divisors (see below), whose sum is σ = 64006494. Its totient is φ = 21335496.

The previous prime is 42670967. The next prime is 42671009. The reversal of 42670994 is 49907624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30858025 + 11812969 = 5555^2 + 3437^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10667747 + ... + 10667750.

Almost surely, 2^42670994 is an apocalyptic number.

42670994 is a deficient number, since it is larger than the sum of its proper divisors (21335500).

42670994 is a wasteful number, since it uses less digits than its factorization.

42670994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21335499.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 42670994 is about 6532.3038814801. The cubic root of 42670994 is about 349.4439988510.

The spelling of 42670994 in words is "forty-two million, six hundred seventy thousand, nine hundred ninety-four".