42029784 has 48 divisors (see below), whose sum is σ = 114257520. Its totient is φ = 13957440.

The previous prime is 42029773. The next prime is 42029807. The reversal of 42029784 is 48792024.

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

It is a congruent number.

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, 21454 + ... + 23330.

It is an arithmetic number, because the mean of its divisors is an integer number (2380365).

Almost surely, 2^42029784 is an apocalyptic number.

It is an amenable number.

42029784 is an abundant number, since it is smaller than the sum of its proper divisors (72227736).

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

42029784 is a wasteful number, since it uses less digits than its factorization.

42029784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2193 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 42029784 is about 6483.0381766576. The cubic root of 42029784 is about 347.6848117225.

The spelling of 42029784 in words is "forty-two million, twenty-nine thousand, seven hundred eighty-four".