2031774738 has 32 divisors (see below), whose sum is σ = 4646920320. Its totient is φ = 580149120.

The previous prime is 2031774733. The next prime is 2031774739. The reversal of 2031774738 is 8374771302.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2031774738.

It is not an unprimeable number, because it can be changed into a prime (2031774733) 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, 58228 + ... + 86336.

It is an arithmetic number, because the mean of its divisors is an integer number (145216260).

Almost surely, 2^2031774738 is an apocalyptic number.

2031774738 is an abundant number, since it is smaller than the sum of its proper divisors (2615145582).

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

2031774738 is a wasteful number, since it uses less digits than its factorization.

2031774738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29842.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 2031774738 is about 45075.2120128125. The cubic root of 2031774738 is about 1266.5583004092.

The spelling of 2031774738 in words is "two billion, thirty-one million, seven hundred seventy-four thousand, seven hundred thirty-eight".