2047629638 has 4 divisors (see below), whose sum is σ = 3071444460. Its totient is φ = 1023814818.

The previous prime is 2047629631. The next prime is 2047629641. The reversal of 2047629638 is 8369267402.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2047629638² = 8385574268832022088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2047629592 and 2047629601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047629631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511907408 + ... + 511907411.

It is an arithmetic number, because the mean of its divisors is an integer number (767861115).

Almost surely, 2^2047629638 is an apocalyptic number.

2047629638 is a deficient number, since it is larger than the sum of its proper divisors (1023814822).

2047629638 is a wasteful number, since it uses less digits than its factorization.

2047629638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023814821.

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 2047629638 is about 45250.7418502725. The cubic root of 2047629638 is about 1269.8442857840.

The spelling of 2047629638 in words is "two billion, forty-seven million, six hundred twenty-nine thousand, six hundred thirty-eight".