361985436 has 36 divisors (see below), whose sum is σ = 948910872. Its totient is φ = 120661488.

The previous prime is 361985417. The next prime is 361985441. The reversal of 361985436 is 634589163.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×361985436² = 262066911752220192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 361985391 and 361985400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185235 + ... + 187178.

Almost surely, 2^361985436 is an apocalyptic number.

361985436 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

361985436 is an abundant number, since it is smaller than the sum of its proper divisors (586925436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361985436 is a wasteful number, since it uses less digits than its factorization.

361985436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372432 (or 372418 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 361985436 is about 19025.9148531680. The cubic root of 361985436 is about 712.6840388852.

The spelling of 361985436 in words is "three hundred sixty-one million, nine hundred eighty-five thousand, four hundred thirty-six".