146440454 has 8 divisors (see below), whose sum is σ = 219797760. Its totient is φ = 73174536.

The previous prime is 146440451. The next prime is 146440501. The reversal of 146440454 is 454044641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×146440454² = 42889613135452232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 146440454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146440451) 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, 18689 + ... + 25340.

It is an arithmetic number, because the mean of its divisors is an integer number (27474720).

Almost surely, 2^146440454 is an apocalyptic number.

146440454 is a deficient number, since it is larger than the sum of its proper divisors (73357306).

146440454 is a wasteful number, since it uses less digits than its factorization.

146440454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45694.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 146440454 is about 12101.2583643190. The cubic root of 146440454 is about 527.0927251695.

The spelling of 146440454 in words is "one hundred forty-six million, four hundred forty thousand, four hundred fifty-four".