201454440 has 64 divisors (see below), whose sum is σ = 659309760. Its totient is φ = 48837120.

The previous prime is 201454417. The next prime is 201454459. The reversal of 201454440 is 44454102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 201454440.

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, 74989 + ... + 77628.

It is an arithmetic number, because the mean of its divisors is an integer number (10301715).

Almost surely, 2^201454440 is an apocalyptic number.

201454440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201454440 is an abundant number, since it is smaller than the sum of its proper divisors (457855320).

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

201454440 is a wasteful number, since it uses less digits than its factorization.

201454440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152642 (or 152638 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 201454440 is about 14193.4646933016. The cubic root of 201454440 is about 586.2177278816.

The spelling of 201454440 in words is "two hundred one million, four hundred fifty-four thousand, four hundred forty".