442148190 has 32 divisors (see below), whose sum is σ = 1157625216. Its totient is φ = 107187360.

The previous prime is 442148171. The next prime is 442148237. The reversal of 442148190 is 91841244.

It is a super-2 number, since 2×442148190² = 390990043840552200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669592 + ... + 670251.

It is an arithmetic number, because the mean of its divisors is an integer number (36175788).

Almost surely, 2^442148190 is an apocalyptic number.

442148190 is an abundant number, since it is smaller than the sum of its proper divisors (715477026).

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

442148190 is a wasteful number, since it uses less digits than its factorization.

442148190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339864.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 442148190 is about 21027.3200860214. The cubic root of 442148190 is about 761.8262808293.

The spelling of 442148190 in words is "four hundred forty-two million, one hundred forty-eight thousand, one hundred ninety".