201278994 has 32 divisors (see below), whose sum is σ = 460615680. Its totient is φ = 57439632.

The previous prime is 201278983. The next prime is 201278999. The reversal of 201278994 is 499872102.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (201278999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40447 + ... + 45149.

It is an arithmetic number, because the mean of its divisors is an integer number (14394240).

Almost surely, 2^201278994 is an apocalyptic number.

201278994 is an abundant number, since it is smaller than the sum of its proper divisors (259336686).

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

201278994 is a wasteful number, since it uses less digits than its factorization.

201278994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 201278994 is about 14187.2828265317. The cubic root of 201278994 is about 586.0475001004.

The spelling of 201278994 in words is "two hundred one million, two hundred seventy-eight thousand, nine hundred ninety-four".