201477738 has 64 divisors (see below), whose sum is σ = 506373120. Its totient is φ = 51916800.

The previous prime is 201477721. The next prime is 201477763. The reversal of 201477738 is 837774102.

It is a junction number, because it is equal to n+sod(n) for n = 201477696 and 201477705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58858 + ... + 62186.

It is an arithmetic number, because the mean of its divisors is an integer number (7912080).

Almost surely, 2^201477738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201477738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253186560).

201477738 is an abundant number, since it is smaller than the sum of its proper divisors (304895382).

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

201477738 is a wasteful number, since it uses less digits than its factorization.

201477738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 201477738 is about 14194.2853994134. The cubic root of 201477738 is about 586.2403255041.

The spelling of 201477738 in words is "two hundred one million, four hundred seventy-seven thousand, seven hundred thirty-eight".