1038722749 has 8 divisors (see below), whose sum is σ = 1068452352. Its totient is φ = 1009246560.

The previous prime is 1038722747. The next prime is 1038722777. The reversal of 1038722749 is 9472278301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1038722749 - 2¹ = 1038722747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1038722743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55024 + ... + 71449.

It is an arithmetic number, because the mean of its divisors is an integer number (133556544).

Almost surely, 2^1038722749 is an apocalyptic number.

It is an amenable number.

1038722749 is a deficient number, since it is larger than the sum of its proper divisors (29729603).

1038722749 is a wasteful number, since it uses less digits than its factorization.

1038722749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126707.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 1038722749 is about 32229.2219732342. The cubic root of 1038722749 is about 1012.7444714551.

The spelling of 1038722749 in words is "one billion, thirty-eight million, seven hundred twenty-two thousand, seven hundred forty-nine".