42946380 has 36 divisors (see below), whose sum is σ = 130271232. Its totient is φ = 11452320.

The previous prime is 42946373. The next prime is 42946429. The reversal of 42946380 is 8364924.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119116 + ... + 119475.

Almost surely, 2^42946380 is an apocalyptic number.

It is an amenable number.

42946380 is an abundant number, since it is smaller than the sum of its proper divisors (87324852).

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

42946380 is a wasteful number, since it uses less digits than its factorization.

42946380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238606 (or 238601 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 42946380 is about 6553.3487622741. The cubic root of 42946380 is about 350.1941236041.

The spelling of 42946380 in words is "forty-two million, nine hundred forty-six thousand, three hundred eighty".