1384531357 has 16 divisors (see below), whose sum is σ = 1600521984. Its totient is φ = 1183680000.

The previous prime is 1384531321. The next prime is 1384531361. The reversal of 1384531357 is 7531354831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1384531357 - 2¹¹ = 1384529309 is a prime.

It is a super-2 number, since 2×1384531357² = 3833854157032522898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384531367) 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, 334732 + ... + 338842.

It is an arithmetic number, because the mean of its divisors is an integer number (100032624).

Almost surely, 2^1384531357 is an apocalyptic number.

1384531357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1384531357 is a deficient number, since it is larger than the sum of its proper divisors (215990627).

1384531357 is a wasteful number, since it uses less digits than its factorization.

1384531357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940.

The product of its digits is 151200, while the sum is 40.

The square root of 1384531357 is about 37209.2912724766. The cubic root of 1384531357 is about 1114.5535308880.

The spelling of 1384531357 in words is "one billion, three hundred eighty-four million, five hundred thirty-one thousand, three hundred fifty-seven".