1364431749 has 16 divisors (see below), whose sum is σ = 1828623360. Its totient is φ = 904942080.

The previous prime is 1364431729. The next prime is 1364431769. The reversal of 1364431749 is 9471344631.

It is an interprime number because it is at equal distance from previous prime (1364431729) and next prime (1364431769).

It is not a de Polignac number, because 1364431749 - 2⁸ = 1364431493 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1364431749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364431709) 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, 915597 + ... + 917085.

It is an arithmetic number, because the mean of its divisors is an integer number (114288960).

Almost surely, 2^1364431749 is an apocalyptic number.

It is an amenable number.

1364431749 is a deficient number, since it is larger than the sum of its proper divisors (464191611).

1364431749 is a wasteful number, since it uses less digits than its factorization.

1364431749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860.

The product of its digits is 217728, while the sum is 42.

The square root of 1364431749 is about 36938.2152925666. The cubic root of 1364431749 is about 1109.1337962615.

The spelling of 1364431749 in words is "one billion, three hundred sixty-four million, four hundred thirty-one thousand, seven hundred forty-nine".