1368433880 has 64 divisors (see below), whose sum is σ = 3381588000. Its totient is φ = 494248960.

The previous prime is 1368433873. The next prime is 1368433897. The reversal of 1368433880 is 883348631.

It is a super-2 number, since 2×1368433880² = 3745222567863708800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 55124 + ... + 75996.

Almost surely, 2^1368433880 is an apocalyptic number.

1368433880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368433880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690794000).

1368433880 is an abundant number, since it is smaller than the sum of its proper divisors (2013154120).

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

1368433880 is a wasteful number, since it uses less digits than its factorization.

1368433880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21044 (or 21040 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 1368433880 is about 36992.3489386657. The cubic root of 1368433880 is about 1110.2171693149.

The spelling of 1368433880 in words is "one billion, three hundred sixty-eight million, four hundred thirty-three thousand, eight hundred eighty".