190440452 has 12 divisors (see below), whose sum is σ = 333369036. Its totient is φ = 95192160.

The previous prime is 190440451. The next prime is 190440461. The reversal of 190440452 is 254044091.

It can be written as a sum of positive squares in 2 ways, for example, as 67141636 + 123298816 = 8194^2 + 11104^2 .

It is a super-3 number, since 3×190440452³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (190440451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18818 + ... + 27110.

It is an arithmetic number, because the mean of its divisors is an integer number (27780753).

Almost surely, 2^190440452 is an apocalyptic number.

It is an amenable number.

190440452 is a deficient number, since it is larger than the sum of its proper divisors (142928584).

190440452 is a wasteful number, since it uses less digits than its factorization.

190440452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038 (or 14036 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 190440452 is about 13800.0163768019. The cubic root of 190440452 is about 575.3335954577. Note that the first 3 decimals are identical.

The spelling of 190440452 in words is "one hundred ninety million, four hundred forty thousand, four hundred fifty-two".