405004007389 has 2 divisors, whose sum is σ = 405004007390. Its totient is φ = 405004007388.

The previous prime is 405004007371. The next prime is 405004007407. The reversal of 405004007389 is 983700400504.

It is a balanced prime because it is at equal distance from previous prime (405004007371) and next prime (405004007407).

It can be written as a sum of positive squares in only one way, i.e., 305734902489 + 99269104900 = 552933^2 + 315070^2 .

It is a cyclic number.

It is not a de Polignac number, because 405004007389 - 2¹⁷ = 405003876317 is a prime.

It is a super-2 number, since 2×405004007389² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405004007489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202502003694 + 202502003695.

It is an arithmetic number, because the mean of its divisors is an integer number (202502003695).

Almost surely, 2^405004007389 is an apocalyptic number.

It is an amenable number.

405004007389 is a deficient number, since it is larger than the sum of its proper divisors (1).

405004007389 is an equidigital number, since it uses as much as digits as its factorization.

405004007389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 405004007389 in words is "four hundred five billion, four million, seven thousand, three hundred eighty-nine".