1361958420 has 48 divisors (see below), whose sum is σ = 3861768960. Its totient is φ = 358590336.

The previous prime is 1361958401. The next prime is 1361958427. The reversal of 1361958420 is 248591631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361958427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138927 + ... + 148406.

It is an arithmetic number, because the mean of its divisors is an integer number (80453520).

Almost surely, 2^1361958420 is an apocalyptic number.

1361958420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361958420 is an abundant number, since it is smaller than the sum of its proper divisors (2499810540).

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

1361958420 is a wasteful number, since it uses less digits than its factorization.

1361958420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287424 (or 287422 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1361958420 is about 36904.7208362291. The cubic root of 1361958420 is about 1108.4632089059.

The spelling of 1361958420 in words is "one billion, three hundred sixty-one million, nine hundred fifty-eight thousand, four hundred twenty".