1361555430 has 16 divisors (see below), whose sum is σ = 3267733104. Its totient is φ = 363081440.

The previous prime is 1361555411. The next prime is 1361555467. The reversal of 1361555430 is 345551631.

It is a junction number, because it is equal to n+sod(n) for n = 1361555391 and 1361555400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22692561 + ... + 22692620.

It is an arithmetic number, because the mean of its divisors is an integer number (204233319).

Almost surely, 2^1361555430 is an apocalyptic number.

1361555430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361555430 is an abundant number, since it is smaller than the sum of its proper divisors (1906177674).

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

1361555430 is a wasteful number, since it uses less digits than its factorization.

1361555430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45385191.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 1361555430 is about 36899.2605616969. The cubic root of 1361555430 is about 1108.3538703615.

The spelling of 1361555430 in words is "one billion, three hundred sixty-one million, five hundred fifty-five thousand, four hundred thirty".