442154052 has 36 divisors (see below), whose sum is σ = 1159064816. Its totient is φ = 147384360.

The previous prime is 442154029. The next prime is 442154057. The reversal of 442154052 is 250451244.

442154052 is a `hidden beast` number, since 44 + 215 + 405 + 2 = 666.

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 (27).

It is not an unprimeable number, because it can be changed into a prime (442154057) 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, 226474 + ... + 228417.

Almost surely, 2^442154052 is an apocalyptic number.

It is an amenable number.

442154052 is an abundant number, since it is smaller than the sum of its proper divisors (716910764).

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

442154052 is a wasteful number, since it uses less digits than its factorization.

442154052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454910 (or 454896 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 442154052 is about 21027.4594756476. The cubic root of 442154052 is about 761.8296475783.

The spelling of 442154052 in words is "four hundred forty-two million, one hundred fifty-four thousand, fifty-two".