361398405 has 16 divisors (see below), whose sum is σ = 578954880. Its totient is φ = 192506688.

The previous prime is 361398397. The next prime is 361398413. The reversal of 361398405 is 504893163.

It is an interprime number because it is at equal distance from previous prime (361398397) and next prime (361398413).

It is not a de Polignac number, because 361398405 - 2³ = 361398397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2097 + ... + 26966.

It is an arithmetic number, because the mean of its divisors is an integer number (36184680).

Almost surely, 2^361398405 is an apocalyptic number.

It is an amenable number.

361398405 is a deficient number, since it is larger than the sum of its proper divisors (217556475).

361398405 is a wasteful number, since it uses less digits than its factorization.

361398405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29900.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 361398405 is about 19010.4814510312. The cubic root of 361398405 is about 712.2985777205.

It can be divided in two parts, 36139 and 8405, that added together give a palindrome (44544).

The spelling of 361398405 in words is "three hundred sixty-one million, three hundred ninety-eight thousand, four hundred five".