361521398 has 32 divisors (see below), whose sum is σ = 655776000. Its totient is φ = 146016864.

The previous prime is 361521389. The next prime is 361521403. The reversal of 361521398 is 893125163.

It is a happy number.

361521398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 48953 + ... + 55851.

It is an arithmetic number, because the mean of its divisors is an integer number (20493000).

Almost surely, 2^361521398 is an apocalyptic number.

361521398 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

361521398 is a deficient number, since it is larger than the sum of its proper divisors (294254602).

361521398 is a wasteful number, since it uses less digits than its factorization.

361521398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124.

The product of its digits is 38880, while the sum is 38.

The square root of 361521398 is about 19013.7160492104. The cubic root of 361521398 is about 712.3793729512.

The spelling of 361521398 in words is "three hundred sixty-one million, five hundred twenty-one thousand, three hundred ninety-eight".